http://www.dvlotteryapply.com/2013DV/Apply-Now.php
There are two ways to apply for the DV lottery which is also called as green card lottery.
Many private web sites provide their own DV Lottery applications round the year. Any time you can apply through these experienced people if you don't know to make photo or don't know English well. These private companies will look after every thing once you applied through them. They are operated in the names of law firms, law office, immigration consultants and so on. There will charge reasonable amount of money from you for their valuable service.
Second one is to apply through the American Government's official web site. There is no fee to apply through this web site. But if you make any mistakes in the application form that will cost your visa fees of US$ 755 on the day of your interview if you are selected as a winner to proceed. The official web site will accept entries in the officially announced dates only. Till then the web site will not provide the application form and if the fiscal year application period is over then the web site will not provide the application for. U.S State Department will announce the opening and closing dates of this web site around September each year.
Are you dreaming of Living and working in America with your family legally?
You can become as an U.S.A Citizen too later.
You can sponsor certain relatives of yours.
You can Study at low cost in America.
You can take jobs according to your profession.
You can travel to U.S.A any time freely without a visa.
Thursday, September 8, 2011
Diversity Visa (DV) Lottery Program
Apply to the DV Lottery Now.
DV Program 2012: Entrants in the Diversity Visa 2012 lottery may check the status of their entries through the Entry Status Check on the E-DV website now through June 30, 2012. Review more about Entry Status Check.
IMPORTANT NOTICE: DV entrants will need to use the information from their DV-2012 confirmation pages saved at the time of entry to find out if their entry was or was not selected. If you have lost your confirmation information, you will not be able to check your DV entry status. We will not be able to resend the confirmation page information to you.
Diversity Visa Scammers Sending Fraudulent Emails and Letters
The Department of State, Office of Visa Services, advises the public of a notable increase in fraudulent emails and letters sent to Diversity Immigrant Visa (DV) program (Visa Lottery) applicants. The scammers behind these fraudulent emails and letters are posing as the U.S. government in an attempt to extract payment from DV applicants. Review the procedures for the DV program provided below, so that you know what to expect, when to expect it, and from whom.
Refer to the additional fraud warning information below, as well as frequently asked questions about fraud protection for more information.
Overview
Fraud Warning
Entry Status Check
Lottery Selectee Notification and Next Steps
Qualifying Occupations
Diversity Visa Program Results
Rewards for Justice
Additional Resources
Overview
DV Program 2012: Entrants in the Diversity Visa 2012 lottery may check the status of their entries through the Entry Status Check on the E-DV website now through June 30, 2012. Review more about Entry Status Check.
IMPORTANT NOTICE: DV entrants will need to use the information from their DV-2012 confirmation pages saved at the time of entry to find out if their entry was or was not selected. If you have lost your confirmation information, you will not be able to check your DV entry status. We will not be able to resend the confirmation page information to you.
Diversity Visa Scammers Sending Fraudulent Emails and Letters
The Department of State, Office of Visa Services, advises the public of a notable increase in fraudulent emails and letters sent to Diversity Immigrant Visa (DV) program (Visa Lottery) applicants. The scammers behind these fraudulent emails and letters are posing as the U.S. government in an attempt to extract payment from DV applicants. Review the procedures for the DV program provided below, so that you know what to expect, when to expect it, and from whom.
Refer to the additional fraud warning information below, as well as frequently asked questions about fraud protection for more information.
Overview
Fraud Warning
Entry Status Check
Lottery Selectee Notification and Next Steps
Qualifying Occupations
Diversity Visa Program Results
Rewards for Justice
Additional Resources
Overview
Saturday, March 26, 2011
Increase Your Windows Xp Speed
Increase Your Windows Xp Speed
Increase Your Windows Xp Speed now!!!, none of them put all the posts together. Today’s post is some what interesting where we will know how to Increase Your Windows Xp Speed .First I have to make sure that what ever we are installing in windows will show same effect on the performance of the system. So make sure that you wont install too much of stuff in your computer.
The best part is the we are not any software’s or applications to speed up our system. All you have to do is to edit the registry file which is very easy. Just follow the simple steps given below :
Speed Up Booting Process in XP.
Open Run (Win + R)
Type regedit
Navigate to HKEY_LOCAL_MACHINE and then to SYSTEM and to CurrentControlSet and to Control and
Click on ContentIndex, You can see a list of files in right hand window.
Go there and search for Startupdelay and double click on it to edit it.
Change the Base Valuse from Hexadecimal to Decimal
Now change the value from 480000 to 4000.
8. Here the exact location HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\ContentIndex\Startupdelay
9. This will speed up your windows start-up and if you still didn’t understand, you can take a look at the screenshot above.
Speed Up Shutdown Process in XP.
Open Run (Win + R)
Type regedit
Navigate to HKEY_LOCAL_MACHINE and then to SYSTEM and to CurrentControlSet and to Control
Click on control and look at right side where you can see a file called wait to kill service.
Now open that file by double clicking it and change the value from 2000 to 20
Here is the location HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control
Try this and you will love to see your system shutting down so fast :D
Speeding Up Windows Xp and RAM.
This trick will speed up your PC so fast that you wont believe it.
Just you have to create VBE Script which makes your ram to work fast.
This is safe and tested. Just open Notepad and Type as mystring=(80000000) which has 7 0′s in it.
And save it as ram.vbe or any other name which you want.
This will create a speed.vbe script which is a kind of ram optimizer. Put it on your desktop and double click on it when ever you feel your system is slow.
This is tested in many system’s and which have showed very good results. I prefer you to try this on any slow system for you to experience the difference.
No need to restart or shutdown your system when you feel its slow. Just use this speed.vbe script
OR
You can also use this simple steps to make xp more faster.
Right click on My Computer and Click on Properties.
And then Advanced, look for first option performance and then click on setting.
Click on custom and De-select all the option expect the last two.
Click on Apply and then check out the windows performance which is a lot more better now.
speeding up xp
Change Windows Xp SP2 to Sp3 and Sp2 to Sp1 easily.
This can be done very easily with simple steps.
Open run and type regedit.
go to HKEY_LOCAL_MACHINE and System and to CurrentControlSet and to Control
Find windows folder in control and then click on it to see CSD Version which is on the right side.
Double click to open it and then Change the data value from 200 XP SP2 to 300 for XP SP3
and Change 200 XP SP2 t0 100 for XP SP1.
By this way you can change Windows Xp Service packs 1,2,3 to whatever you want.
change sp2 to sp3
Hope you all liked this my post of Windows Xp Speedup Secrets. Please comment this post :D.
happy blogging friend :)
Increase Your Windows Xp Speed now!!!, none of them put all the posts together. Today’s post is some what interesting where we will know how to Increase Your Windows Xp Speed .First I have to make sure that what ever we are installing in windows will show same effect on the performance of the system. So make sure that you wont install too much of stuff in your computer.
The best part is the we are not any software’s or applications to speed up our system. All you have to do is to edit the registry file which is very easy. Just follow the simple steps given below :
Speed Up Booting Process in XP.
Open Run (Win + R)
Type regedit
Navigate to HKEY_LOCAL_MACHINE and then to SYSTEM and to CurrentControlSet and to Control and
Click on ContentIndex, You can see a list of files in right hand window.
Go there and search for Startupdelay and double click on it to edit it.
Change the Base Valuse from Hexadecimal to Decimal
Now change the value from 480000 to 4000.
8. Here the exact location HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\ContentIndex\Startupdelay
9. This will speed up your windows start-up and if you still didn’t understand, you can take a look at the screenshot above.
Speed Up Shutdown Process in XP.
Open Run (Win + R)
Type regedit
Navigate to HKEY_LOCAL_MACHINE and then to SYSTEM and to CurrentControlSet and to Control
Click on control and look at right side where you can see a file called wait to kill service.
Now open that file by double clicking it and change the value from 2000 to 20
Here is the location HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control
Try this and you will love to see your system shutting down so fast :D
Speeding Up Windows Xp and RAM.
This trick will speed up your PC so fast that you wont believe it.
Just you have to create VBE Script which makes your ram to work fast.
This is safe and tested. Just open Notepad and Type as mystring=(80000000) which has 7 0′s in it.
And save it as ram.vbe or any other name which you want.
This will create a speed.vbe script which is a kind of ram optimizer. Put it on your desktop and double click on it when ever you feel your system is slow.
This is tested in many system’s and which have showed very good results. I prefer you to try this on any slow system for you to experience the difference.
No need to restart or shutdown your system when you feel its slow. Just use this speed.vbe script
OR
You can also use this simple steps to make xp more faster.
Right click on My Computer and Click on Properties.
And then Advanced, look for first option performance and then click on setting.
Click on custom and De-select all the option expect the last two.
Click on Apply and then check out the windows performance which is a lot more better now.
speeding up xp
Change Windows Xp SP2 to Sp3 and Sp2 to Sp1 easily.
This can be done very easily with simple steps.
Open run and type regedit.
go to HKEY_LOCAL_MACHINE and System and to CurrentControlSet and to Control
Find windows folder in control and then click on it to see CSD Version which is on the right side.
Double click to open it and then Change the data value from 200 XP SP2 to 300 for XP SP3
and Change 200 XP SP2 t0 100 for XP SP1.
By this way you can change Windows Xp Service packs 1,2,3 to whatever you want.
change sp2 to sp3
Hope you all liked this my post of Windows Xp Speedup Secrets. Please comment this post :D.
happy blogging friend :)
HDA audio bus driver is required and not found SOLVED/ How To Install Laptop Audio with Windows XP SP3
After installed HD audio/modem device with the right drivers to the computer, these devices still can’t detect by the computer system. If you have this experience, it will make you headache because seems like all computer’s systems running correctly. Yes, it could be hard enough to find any solution to fix that problem. It’s the one bug of applying XP SP3 into Windows XP.
HDA audio bus driver is required and not found SOLVED
67
rate or flag this pageTweet this
By richardmacarthy
Creative Labs SB0570L4 Sound Blaster Audigy SE Sound Card Creative Labs SB0570L4 Sound Blaster Audigy SE Sound Card
Amazon Price: $19.95
List Price: $58.11
HDA Audio bus driver is required and not found
HDA Audio bus driver is required and not found.
Step 1
Go to Start > Run and type Regedit
Step 2
This will open up Windows Registry Editor. Next, follow the location of the key below by navigation through the little [+] signs you see next to the folders.
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Windows\CDSVersion
Step 3
Change the value of the CSDVersion Dword and give it the value 200.
Step 4
Try to install your driver again, you should not get the error this time. Once installed, restart your computer and resotre the registry key back to 300.
Note: The 300 refers to the service pack you are running. In this example we fooled windows into thinking we had service pack 2, although we are actually running service pack 3!
Once you have restarted your machine you should have a fully working sound driver.
Thank you
Or
Click Start => Run => type Regedit and looking for:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Windows
Find CSDVersion Key
Legend:
100 (hex) means its SP1
200 (hex) means its SP2
300 (hex) means its SP3
Changes CSDVersion from 300 to 200 and Restart
Now installed kb888111xp2.exe (Microsoft UAA Patch) and turn back CSDVersion to 300. After Restart you can install device drivers
Besides, seems like Microsoft forgot to include UAA support in SP3 driver database. So, although you’re already done with the solution above, there’s good also to try: User Modified kb888111 patch fixed for Service Pack 3 by following this links:
Fix for KB888111 for Windows XP SP3 RC v3264 (Original)
Fix for KB888111 for Windows XP SP3 RC v3264 (Mirror hosted here)
or UAA for XP-SP3 here
HDA audio bus driver is required and not found SOLVED
67
rate or flag this pageTweet this
By richardmacarthy
Creative Labs SB0570L4 Sound Blaster Audigy SE Sound Card Creative Labs SB0570L4 Sound Blaster Audigy SE Sound Card
Amazon Price: $19.95
List Price: $58.11
HDA Audio bus driver is required and not found
HDA Audio bus driver is required and not found.
Step 1
Go to Start > Run and type Regedit
Step 2
This will open up Windows Registry Editor. Next, follow the location of the key below by navigation through the little [+] signs you see next to the folders.
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Windows\CDSVersion
Step 3
Change the value of the CSDVersion Dword and give it the value 200.
Step 4
Try to install your driver again, you should not get the error this time. Once installed, restart your computer and resotre the registry key back to 300.
Note: The 300 refers to the service pack you are running. In this example we fooled windows into thinking we had service pack 2, although we are actually running service pack 3!
Once you have restarted your machine you should have a fully working sound driver.
Thank you
Or
Click Start => Run => type Regedit and looking for:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Windows
Find CSDVersion Key
Legend:
100 (hex) means its SP1
200 (hex) means its SP2
300 (hex) means its SP3
Changes CSDVersion from 300 to 200 and Restart
Now installed kb888111xp2.exe (Microsoft UAA Patch) and turn back CSDVersion to 300. After Restart you can install device drivers
Besides, seems like Microsoft forgot to include UAA support in SP3 driver database. So, although you’re already done with the solution above, there’s good also to try: User Modified kb888111 patch fixed for Service Pack 3 by following this links:
Fix for KB888111 for Windows XP SP3 RC v3264 (Original)
Fix for KB888111 for Windows XP SP3 RC v3264 (Mirror hosted here)
or UAA for XP-SP3 here
Monday, November 8, 2010
List of some Internet Service Providers in Nigeria And Their Web sites
http://naija-isp.blogspot.com/
Accelon Nigeria Limited
Internet Service Provider.
Address: FABAC Centre, 3B Ligali Ayorinde St. Victoria Island, Lagos
Phone +234 1 2709000, 2709932; Fax: +234 1 2705781
Website: http://www.accelonafrica.com
Adesemi Nigeria Limited
Internet Service Providers
Website: http://www.recontechnology.com/adesemi/home.htm
Cobra Net Ltd.
DSL, VSAT, Networking, Data/Voice/Video, Broadband Internet.
Address: Plot 8, Rafiu Babatunde Street, Off. Admiralty Way, Lekki Phase 1, Lagos.
Phone +234 1 2715763-5, 2704588-9; Fax: +234 1 4445660
Email: info@cobranet.org
Website: http://www.cobranet.org
Cyberspace Network Limited
Address: 33, Saka Tinubu Street, Victoria Island, Lagos
Phone +234 1 2624288, 2622720, 2624590-1, 2700285-9; Fax: +234 1 2624287
Email: info@cyberspace.net.ng
Website: http://www.cyberspace.net.ng
Direct On PC
Data networks and broadband communications. WiMAX, etc.
Address: Plot B, Block 1, Ilupeju Industrial Estate, Ilupeju Lagos
Phone +234 1 2701700; Fax: +234 1 2713554, 4930958
Email: info@directonpc.com
Website: http://www.directonpc.com
Electronic Connections limited
Address: 8A Race Course Road, Kano
Phone +234 64 640 693 - 5, 641 815
Email: info@ecnx.net
Website: http://www.ecnx.net
Galaxy Information Technology and Telecommunications Limited
Address: 22 Adetokumbo Ademola Crescent, Wuse II, Abuja
Phone +234 9 5233897, 5235044
Email: info@galaxyitt.com
Website: http://www.galaxyitt.com
Gateway Communications Nigeria
High speed voice and bandwidth services
Address: 3A Aja Nwachukwu Close, Ikoyi, Lagos
Phone +234 1 461 0700, 461 2899
Email: salesnigeria@gatewaycomms.com
Website: http://www.gstelecom.net
General Data Engineering Services Limited (SKANNET)
Address: 16/18b Oshin Road, Kongi Bodija Ibadan.
Phone +234 2 8105156, 7517222, 8717226, 08028846672
Email: info@skannet.com
Website: http://www.skannet.com
Hyperia
Dial up, VSAT, Wireless, WiMAX etc.
Address: 27 Saka Tinubu Street, Victoria Island, Lagos.
Phone: +234 1 4619911-14, 2716777; Fax: +234 1 461 9915
Email: info@hyperia.com
Website: http://www.hyperia.com
InfoWeb Limited
Internet and Data Services
Address: NCWS House (1st Floor), PC 14 Ahmed Onibudo Street, Victoria Island, Lagos
Tel/Fax: +234 1 2623474, 2624256/57
Email: sales@infoweb.abs.net
Website: http://www.infoweb.com.ng
Inet Global Services Ltd.
Internet and Data Services
Address: 2, Ali Akilu (Ladon House), Kaduna, Kaduna State.
Tel/Fax: +234 62 243002, 218795
Email: webmaster@inet-global.com
Website: http://www.inet-global.com
InfoWeb Limited
Internet and Data Services
Address: NCWS House (1st Floor), PC 14 Ahmed Onibudo Street, Victoria Island, Lagos
Tel/Fax: +234 1 2623474, 2624256/57
Email: sales@infoweb.abs.net
Website: http://www.infoweb.com.ng
Integrated Telekom & Networks Limited
Internet and Data Services
Address: 62a Opebi Road (2nd floor), Ikeja, Lagos
Tel/Fax: +234 1 7603265, 7612961, 8755477, 8901412.
Email: mails@itelekom.net
Website: http://www.itelekom.net
IPNX Nigeria Limited
Internet and Data Services
Address: 4, Balarabe Musa Crescent, Victoria Island Lagos.
Tel/Fax: +234 1 4619943-6; Fax: +234 1 261 4633
Website: http://www.ipnxnigeria.net
iWay Nigeria Limited
Internet Service Providers, web hosting
Address: 1, Wole Ariyo Street, By Road 11 Junction, Admiralty Way, Lekki Phase 1, Lekki, Lagos
Phone: +234 1 270 6703, 270 3524, 270 8192-3; Fax: +234 1 270 2340
Email: inl@iwayafrica.com
Website: http://www.iwayafrica.com
KKON Technologies Limited
Broadband Internet ,Satellite , Network
Address: 9th Floor, CSS Bookshop House,50-52 Broad Road, Lagos
Phone: +234 1 9503999, 8786006
Email: info@kkontech.com
Website: http://www.kkontech.com
Kesi & U Cyber Cafe/ Internet Service Provider
Internet services for both home use and public use.
Address: Savage Crescent, GRA, Enugu State, Nigeria
Phone: +234(0)8037221729,08037794984,042-300137
E-mail: kesicomputer@yahoo.com
Linkserve
ISP, VSAT, Web Hosting, VOIP etc.
Address: Plot 308 Adeola Odeku Street, Victoria Island, Lagos
Phone: +234 1 2623900; Fax: +234 1 2623906
Email: info@linkserve.net
Website: http://www.linkserve.com.ng
Megatech Networks
Internet and Data Services.
Address: 147b, Murtala Mohammed Way, P.O Box 12178, Kano.
Phone: +234 64 200200, 200201, 200202, 08036079235
Website: http://www.megatechnet.com
MWEB Nigeria
Internet and Data Services.
Address: 1379 Tiamiyu Savage Street, Victoria Island, Lagos.
Phone: +234 1 270 1333
Email: info@mwebnigeria.com
Website: http://www.mwebnigeria.com
Netcom Africa
Internet Service Providers
Address: 6/F South Atlantic Petroleum Towers, 7, Adeola Odeku Street, Victoria Island, Lagos.
Phone: +234 1 2718888, 4611234, 2718890; Fax: +234 1 4611235
Website: http://www.netcomng.com
Nigeria On-Line Limited (NIGOL)
Internet and Data Services.
Address: Zenon house (13th floor), 2, Ajose Adeogun Street, Victoria Island, Lagos.
Phone: +234 1 2624823 2625075 7742322; Fax: +234 1 2624807
Website: http://www.nigol.net.ng
Nigerian online real estate and properties Market
Address: 15 eletu-odibo street, abule-ijesha,yaba,lagos
Phone: 08055375782
E-mail: info@propertiesng.com
Website: http://www.nigol.net.ng
NigeriaNet Technology Services
Internet Access, Web and Client/Server Solutions.
Address: Okoi Arikpo House, 5 Idowu Taylor Street, Victoria Island, Lagos.
Phone: +234 1 2620240-1
Website: http://www.nigerianet.com
Nova Internet Solutions Nigeria Limited
Internet Service Providers
Address: Suite 17, Eko Hotel Complex, 1, Ajose Adeogun, Victoria Island, Lagos.
Phone: +234 1 2615199, 2615259, 2615359, 2615559; Fax: +234 1 545053
Website: http://www.nova.net.ng
Pinet Informatics Limited
Internet and Data Services.
Address: 5th Floor, Buffalo House, 2 Allen Avenue, Ikeja, Lagos.
Phone: +234 1 4707355, 7949159; Fax: +234 1 2631868, 4707355
Email: info@pinet.com.ng
Website: http://www.pinet.com.ng
Roseccom Nigeria Limited
Internet and Data Services.
Address: Plot 138B, Adetokunbo Ademola Crescent Wuse II, Abuja.
Phone: +234 9 413 1845; Fax: +234 9 4131845
Email: info@rosecom.net
Website: http://www.rosecom.net
Siotel Limited
Address: 5a Karimu Kotun Street, Victoria Island, Lagos..
Phone: +234 1 4617679-82
Website: http://www.siotel.com
Stallionet
Internet and Data Services.
Address: Plot 14, C-Line, Ubium Street, Ewet Housing Estate, Uyo, Akwa Ibom State.
Phone: +234 85 203070, 203180; Fax: +234 85 201997
Email: info@stallionet.com
Website: http://www.stallionet.com
STARNET
Internet and Data Services. Connectivity, Web Service, Consulting, E-Commerce.
Address: 1216 Bishop Kale Close, Victoria Island, Lagos.
Phone: +234 1 8049808, 8041031; Fax: +234 1 5873786, 8041235
Email: wireless@starnet.net.ng
Website: http://www.starnet.net.ng
Steineng Limited
Internet and Data Services.
Address: 14 Kudeti Avenue, Onireke GRA, Ibadan, Oyo State.
Phone: +234 2
Email: info@steineng.com
Website: http://www.steineng.com
SWIFT Networks Ltd
High Speed Internet, IP-VPN, Telephony.
Address: 31B Saka Tinubu Street, Victoria Island, Lagos
Phone: +234 1 71 00000; Fax: +234 1 270 0197
Email: info@swiftng.com
Website: http://www.swiftng.com
Tara Systems Ltd (MetroNG.com)
Dial up, Wireless, Fiber, Access via SAT3 fiber, satellite, ADSL, SDSL.
Address: 6 Broad street Lagos Island, Lagos.
Phone: +234 1 2600340 - 6; Fax: +234 1 2600349
Email: info@metrong.com
Website: http://www.metrong.com
Web Access Resources Limited
Address: Suite A10 Falomo Shopping Complex, Awolowo Road, Ikoyi Lagos
Phone: +234 1 8118127,8116406
Email: info@webaccessng.com
Website: http://www.webaccessng.com
Webcom Limited
Address: 58, Toyin Street, Ikeja, Lagos
Phone: +234 1 4966562, 4970473, 08033045670, 08033265489
Email: info@webcomng.com
Website: http://www.webcomng.com
WebOnLan Nigeria Limited
Wireless Internet Services, VSAT
Address: 73 Ogunu Road, Warri, Delta State.
Phone: +234 (0) 8055666633
Email: sales@webonlan.com
Website: http://www.webonlan.com
World Web Limited
Internet and Data Services.
Address: 11, Ali Akilu Road, Opposite Challenge Bookshop, P. O. Box 2162, Kaduna.
Phone: +234 64 234210, 238464, 238357; Fax: +234 1 64 238357
Email: daniel@wwlkad.com
Website: http://www.wwlkad.com
Accelon Nigeria Limited
Internet Service Provider.
Address: FABAC Centre, 3B Ligali Ayorinde St. Victoria Island, Lagos
Phone +234 1 2709000, 2709932; Fax: +234 1 2705781
Website: http://www.accelonafrica.com
Adesemi Nigeria Limited
Internet Service Providers
Website: http://www.recontechnology.com/adesemi/home.htm
Cobra Net Ltd.
DSL, VSAT, Networking, Data/Voice/Video, Broadband Internet.
Address: Plot 8, Rafiu Babatunde Street, Off. Admiralty Way, Lekki Phase 1, Lagos.
Phone +234 1 2715763-5, 2704588-9; Fax: +234 1 4445660
Email: info@cobranet.org
Website: http://www.cobranet.org
Cyberspace Network Limited
Address: 33, Saka Tinubu Street, Victoria Island, Lagos
Phone +234 1 2624288, 2622720, 2624590-1, 2700285-9; Fax: +234 1 2624287
Email: info@cyberspace.net.ng
Website: http://www.cyberspace.net.ng
Direct On PC
Data networks and broadband communications. WiMAX, etc.
Address: Plot B, Block 1, Ilupeju Industrial Estate, Ilupeju Lagos
Phone +234 1 2701700; Fax: +234 1 2713554, 4930958
Email: info@directonpc.com
Website: http://www.directonpc.com
Electronic Connections limited
Address: 8A Race Course Road, Kano
Phone +234 64 640 693 - 5, 641 815
Email: info@ecnx.net
Website: http://www.ecnx.net
Galaxy Information Technology and Telecommunications Limited
Address: 22 Adetokumbo Ademola Crescent, Wuse II, Abuja
Phone +234 9 5233897, 5235044
Email: info@galaxyitt.com
Website: http://www.galaxyitt.com
Gateway Communications Nigeria
High speed voice and bandwidth services
Address: 3A Aja Nwachukwu Close, Ikoyi, Lagos
Phone +234 1 461 0700, 461 2899
Email: salesnigeria@gatewaycomms.com
Website: http://www.gstelecom.net
General Data Engineering Services Limited (SKANNET)
Address: 16/18b Oshin Road, Kongi Bodija Ibadan.
Phone +234 2 8105156, 7517222, 8717226, 08028846672
Email: info@skannet.com
Website: http://www.skannet.com
Hyperia
Dial up, VSAT, Wireless, WiMAX etc.
Address: 27 Saka Tinubu Street, Victoria Island, Lagos.
Phone: +234 1 4619911-14, 2716777; Fax: +234 1 461 9915
Email: info@hyperia.com
Website: http://www.hyperia.com
InfoWeb Limited
Internet and Data Services
Address: NCWS House (1st Floor), PC 14 Ahmed Onibudo Street, Victoria Island, Lagos
Tel/Fax: +234 1 2623474, 2624256/57
Email: sales@infoweb.abs.net
Website: http://www.infoweb.com.ng
Inet Global Services Ltd.
Internet and Data Services
Address: 2, Ali Akilu (Ladon House), Kaduna, Kaduna State.
Tel/Fax: +234 62 243002, 218795
Email: webmaster@inet-global.com
Website: http://www.inet-global.com
InfoWeb Limited
Internet and Data Services
Address: NCWS House (1st Floor), PC 14 Ahmed Onibudo Street, Victoria Island, Lagos
Tel/Fax: +234 1 2623474, 2624256/57
Email: sales@infoweb.abs.net
Website: http://www.infoweb.com.ng
Integrated Telekom & Networks Limited
Internet and Data Services
Address: 62a Opebi Road (2nd floor), Ikeja, Lagos
Tel/Fax: +234 1 7603265, 7612961, 8755477, 8901412.
Email: mails@itelekom.net
Website: http://www.itelekom.net
IPNX Nigeria Limited
Internet and Data Services
Address: 4, Balarabe Musa Crescent, Victoria Island Lagos.
Tel/Fax: +234 1 4619943-6; Fax: +234 1 261 4633
Website: http://www.ipnxnigeria.net
iWay Nigeria Limited
Internet Service Providers, web hosting
Address: 1, Wole Ariyo Street, By Road 11 Junction, Admiralty Way, Lekki Phase 1, Lekki, Lagos
Phone: +234 1 270 6703, 270 3524, 270 8192-3; Fax: +234 1 270 2340
Email: inl@iwayafrica.com
Website: http://www.iwayafrica.com
KKON Technologies Limited
Broadband Internet ,Satellite , Network
Address: 9th Floor, CSS Bookshop House,50-52 Broad Road, Lagos
Phone: +234 1 9503999, 8786006
Email: info@kkontech.com
Website: http://www.kkontech.com
Kesi & U Cyber Cafe/ Internet Service Provider
Internet services for both home use and public use.
Address: Savage Crescent, GRA, Enugu State, Nigeria
Phone: +234(0)8037221729,08037794984,042-300137
E-mail: kesicomputer@yahoo.com
Linkserve
ISP, VSAT, Web Hosting, VOIP etc.
Address: Plot 308 Adeola Odeku Street, Victoria Island, Lagos
Phone: +234 1 2623900; Fax: +234 1 2623906
Email: info@linkserve.net
Website: http://www.linkserve.com.ng
Megatech Networks
Internet and Data Services.
Address: 147b, Murtala Mohammed Way, P.O Box 12178, Kano.
Phone: +234 64 200200, 200201, 200202, 08036079235
Website: http://www.megatechnet.com
MWEB Nigeria
Internet and Data Services.
Address: 1379 Tiamiyu Savage Street, Victoria Island, Lagos.
Phone: +234 1 270 1333
Email: info@mwebnigeria.com
Website: http://www.mwebnigeria.com
Netcom Africa
Internet Service Providers
Address: 6/F South Atlantic Petroleum Towers, 7, Adeola Odeku Street, Victoria Island, Lagos.
Phone: +234 1 2718888, 4611234, 2718890; Fax: +234 1 4611235
Website: http://www.netcomng.com
Nigeria On-Line Limited (NIGOL)
Internet and Data Services.
Address: Zenon house (13th floor), 2, Ajose Adeogun Street, Victoria Island, Lagos.
Phone: +234 1 2624823 2625075 7742322; Fax: +234 1 2624807
Website: http://www.nigol.net.ng
Nigerian online real estate and properties Market
Address: 15 eletu-odibo street, abule-ijesha,yaba,lagos
Phone: 08055375782
E-mail: info@propertiesng.com
Website: http://www.nigol.net.ng
NigeriaNet Technology Services
Internet Access, Web and Client/Server Solutions.
Address: Okoi Arikpo House, 5 Idowu Taylor Street, Victoria Island, Lagos.
Phone: +234 1 2620240-1
Website: http://www.nigerianet.com
Nova Internet Solutions Nigeria Limited
Internet Service Providers
Address: Suite 17, Eko Hotel Complex, 1, Ajose Adeogun, Victoria Island, Lagos.
Phone: +234 1 2615199, 2615259, 2615359, 2615559; Fax: +234 1 545053
Website: http://www.nova.net.ng
Pinet Informatics Limited
Internet and Data Services.
Address: 5th Floor, Buffalo House, 2 Allen Avenue, Ikeja, Lagos.
Phone: +234 1 4707355, 7949159; Fax: +234 1 2631868, 4707355
Email: info@pinet.com.ng
Website: http://www.pinet.com.ng
Roseccom Nigeria Limited
Internet and Data Services.
Address: Plot 138B, Adetokunbo Ademola Crescent Wuse II, Abuja.
Phone: +234 9 413 1845; Fax: +234 9 4131845
Email: info@rosecom.net
Website: http://www.rosecom.net
Siotel Limited
Address: 5a Karimu Kotun Street, Victoria Island, Lagos..
Phone: +234 1 4617679-82
Website: http://www.siotel.com
Stallionet
Internet and Data Services.
Address: Plot 14, C-Line, Ubium Street, Ewet Housing Estate, Uyo, Akwa Ibom State.
Phone: +234 85 203070, 203180; Fax: +234 85 201997
Email: info@stallionet.com
Website: http://www.stallionet.com
STARNET
Internet and Data Services. Connectivity, Web Service, Consulting, E-Commerce.
Address: 1216 Bishop Kale Close, Victoria Island, Lagos.
Phone: +234 1 8049808, 8041031; Fax: +234 1 5873786, 8041235
Email: wireless@starnet.net.ng
Website: http://www.starnet.net.ng
Steineng Limited
Internet and Data Services.
Address: 14 Kudeti Avenue, Onireke GRA, Ibadan, Oyo State.
Phone: +234 2
Email: info@steineng.com
Website: http://www.steineng.com
SWIFT Networks Ltd
High Speed Internet, IP-VPN, Telephony.
Address: 31B Saka Tinubu Street, Victoria Island, Lagos
Phone: +234 1 71 00000; Fax: +234 1 270 0197
Email: info@swiftng.com
Website: http://www.swiftng.com
Tara Systems Ltd (MetroNG.com)
Dial up, Wireless, Fiber, Access via SAT3 fiber, satellite, ADSL, SDSL.
Address: 6 Broad street Lagos Island, Lagos.
Phone: +234 1 2600340 - 6; Fax: +234 1 2600349
Email: info@metrong.com
Website: http://www.metrong.com
Web Access Resources Limited
Address: Suite A10 Falomo Shopping Complex, Awolowo Road, Ikoyi Lagos
Phone: +234 1 8118127,8116406
Email: info@webaccessng.com
Website: http://www.webaccessng.com
Webcom Limited
Address: 58, Toyin Street, Ikeja, Lagos
Phone: +234 1 4966562, 4970473, 08033045670, 08033265489
Email: info@webcomng.com
Website: http://www.webcomng.com
WebOnLan Nigeria Limited
Wireless Internet Services, VSAT
Address: 73 Ogunu Road, Warri, Delta State.
Phone: +234 (0) 8055666633
Email: sales@webonlan.com
Website: http://www.webonlan.com
World Web Limited
Internet and Data Services.
Address: 11, Ali Akilu Road, Opposite Challenge Bookshop, P. O. Box 2162, Kaduna.
Phone: +234 64 234210, 238464, 238357; Fax: +234 1 64 238357
Email: daniel@wwlkad.com
Website: http://www.wwlkad.com
Tuesday, May 18, 2010
Seiwes/I.T Report on Internet & Networking
Student Industrial Work Experience Report
Held in
SKY INFORMATION CENTRE
Opp. Lautech Car Park, Stadium, Ogbomoso, Oyo State.
By
Ojo Joshua Oluwadamilola
(ND/08/COM/FT/***)
Submitted to the department of ******** *******,
K**** S**** Polytechnic, I*****
(September 21-December 21 2009)
ACKNOWLEDGEMENTS
With the deepest gratitude I wish to thank the Almighty God for the grace and enablement he gave me to be able to compile this report, glory be to God.
I would also like to acknowledge and express my gratitude to every person who has come into my life and inspired, touched, and illuminated me through their presence.
I would like to acknowledge and express my gratitude to the following people for their magnificent support and contributions to my journey and to the creation of this I.T report, for generously sharing there love, money, ideas, in lieu of this I pay homage to my parents Engr. & Dns. Rotimi Ojo for giving me a good education right from my childhood.
Also, my family for their magnificent support and contributions, my big uncle Chief J.O. Oladokun, Mr. Temidayo Abayomi Winner (Director Sky Infornation Centre, Ogbomoso), Mr. & Mrs. A. Ajala, Mr. & Mrs. M. Tilewa, Miss. Ojo Esther Oluwatoyin, Mr. Ojo Emmanuel Odunayo, Mr. Oladokun Bolutife, Oladokun Abimbola .O, Mr. Oladokun Enoch .T, Mr. Oladokun Theophilus .K.
Finally, I am grateful to my dear friends for there support in and out of school Mr. Taiwo Yemi Sanuel,Mr. Oyedeji Benjamen Oyedemi and Mr. Agunbiade Peter , and also to my dear classmates Mr. Aselebe Michael Oluwasegun, Mr. Raheem Akeem Ishola, Mr. Mohammad Taiwo, Mr. Ogungbinle Babatunde Sheriff, Miss. .. Olanike and Yetunde etc
CHAPTER ONE
INTRODUCTION AND HISTORY OF THE ORGANIZATION
Sky Information Centre, is an organization that deals with and organizes training for young computer students. The organization was established in February 2006 and since it establishment it has been a training centre for secondary school students and other institutions within it reach.
It has different sectors, that is different fields in areas of Information Communication Technology (I.C.T). It has well equip state of art experienced trainers and officers.
The aim of this organization is to contribute it quota to the development of the nation’s information technology. The organization is divided into five different departments
ORGANIZATIONAL CHART
THE DIRECTOR
THE MANAGER
I
SECRETARY
I
ADMIN - ACADEMICS- PUBLIC RELATION-ENGINEERING-PRODUCTION (Cashiers).
The organization is located along under G road, opposite Lautech car park, stadium area, ogbomoso, oyo state.
CHAPTER TWO
INTERNET DEFINITION
The Internet is a global system of interconnected governmental, academic, corporate, public, and private computer networks. It is based on the networking technologies of the Internet Protocol Suite. It is the successor of the Advanced Research Projects Agency Network (ARPANET)
INTERNET CAFE
An internet café or cybercafé is a place where one can use a computer with Internet access, most for a fee, usually per hour or minute; sometimes one can have unmetered access with a pass for a day or month, etc also known as Bulk time.
COMPUTER NETWORKS
A computer network, often simply referred to as a network, is a collection of computers and devices connected by communications channels that facilitates communications among users and allows users to share resources with other users. Networks may be classified according to a wide variety of characteristics. This report provides a general overview of types and categories and also presents the basic components of a simple Local Area Network network.
ADVANTAGES OF A NETWORK
1. Facilitates Communication: By using a network, people can communicate efficiently and easily via e-mail, instant messaging, chat rooms, telephony, video telephone calls, and videoconferencing etc.
2. Helps To Share Computer Hardwares Easily: In a networked environment, each computer on a network can access and use hardware on the network. Suppose several personal computers on a network each require the use of a laser printer. If the personal computers and a laser printer are connected to a network, each user can then access the laser printer on the network, as they need it.
3. Sharing files, data, and information: In a networked environment, any authorized user can access data and information stored on other computers on the network. The capability of providing access to data and information on shared storage devices is an important feature of many networks.
4. Sharing softwares: Users connected to a network can access application programs easily other computers on the network.
DISADVANTAGES OF A NETWORK
1. If a network file server develops a fault, then users may not be able to run application programs
2. A fault on the network can cause users to loose data (if the files being worked upon are not saved)
3. If the network stops operating, then it may not be possible to access various resources
4. It is difficult to make the system secure from hackers, novices or industrial espionage
5. Decisions on resource planning tend to become centralized, for example, what word processor is used, what printers are bought, e.t.c.
6. Networks that have grown with little thought can be inefficient in the long term.
As traffic increases on a network, the performance degrades unless it is designed properly
7. The larger the network becomes, the more difficult it is to manage.
8. If something goes wrong with the file server the whole network is unable to operate.
9. The technical skills needed to manage a network are much higher than working on a stand-alone computer.It would take a long time to install software applications on each computer - one at a time
10. It can be frustrating to print to a printer in another room - and then find after a long trek - that there is no paper in the printer!
11. Users may use up too much of the storage space and this may cause problems on the network
12. Users may use too much bandwidth - for example when listening to music files or watching video clips - preventing others from using the network facilities properly
TYPES OF COMPUTER NETWORKS
Common types of computer networks may be identified by their scale.
Computer network design can range from simple to very complex. Networking can be as simple as connecting two computers, or a computer and a printer, while more complex networks can involve the connection of millions of computers and devices. A brief outline of different computer network types:
1. Personal Area Network (PAN): The smallest type of network, a PAN simply involves connecting one person's computer to a number of devices or peripherals. Usually, all devices, such as printers, PDAs, and telephones, are within a few feet of the computer. A PAN can also refer to a connection to the internet.
2. Local Area Network (LAN): If you have a home network with two or more computers or you are connected to other computers at your workplace, then you are on a LAN. LANs are ideal for networking in a small geographical area and can either work with cables and hubs, or wirelessly. They allow for the speedy transfer of data up to 10Gbit/s. Most LANs are based on Ethernet technology. Wireless Local Area Networks are known as WLANs.
3. Metropolitan Area Network (MAN): A MAN usually consists of a number of interconnected LANs and WANs, but will not extend beyond the boundaries of a town, city, or metropolitan area.
4. Wide Area Network (WAN): The WAN is the next step up from the MAN because it can cross metropolitan or even national boundaries. The best known WAN is the internet and, like all WANs, it uses routers and public communication links to carry data. While the internet is open to all, many WANs are run by private companies and are restricted.
There are more network type, ranging from the Canpus Area Network (CAN), Desktop Area Network (DAN) to the much, much bigger Global Area Network (GAN). etc
NETWORK TOPOLOGY
In Computer Networking “topology” refers to the layout, architecture , shape, structure or design of the connected devices. Network Topologies can be physical or logical.
Computer network topologies can be categorized in the following categories: Bus, Star, Ring , Mesh, Tree etc. Hybrid networks are the complex networks, which can be built of two or more above mentioned topologies.
1. Bus Topology : Bus topology uses a common backbone to connect all the network devices in a network in a linear shape. A single cable functions as the shared communication medium for all the devices attached with this cable with an interface connector. The device, which wants to communicate send the broadcast message to all the devices attached with the shared cable but only the intended recipient actually accepts and process that message.
2. Ring Topology: In ring Network, every computer or devices has two adjacent neighbors for communication. In a ring network, all the communication messages travel in the same directory whether clockwise or anti clockwise. Any damage of the cable of any computer or device can result in the breakdown of the whole network. Ring topology now has become almost obsolete.
3. Star Topology: All the computers in the star topologies are connected to central devices like hub, switch or router. In the computer networking world the most commonly used topology in LAN is the star topology.
As compared to the bus topology, a star network requires more devices & cables to complete a network. The failure of each node or cable in a star network, won’t take down the entire network as compared to the Bus topology. However if the central connecting devices such as hub, switch or router fails due to any reason,then ultimately all the network can come down or collapse.
4. Tree Topology : Tree topology comprises of the multiple star topologies on a bus. Tree topologies integrate multiple star topologies together onto a bus. Only the hub devices can connect directly with the tree bus and each Hub functions as a root of a tree of the network devices. This bus/star/hybrid combination supports future expandability of the computer networks, much better than a bus or star.
Topologies are the important part of the network design theory. A better network can be built if you have the knowledge of these topologies and if you know the difference between each topology.
HOW TO SET UP A COMPUTER NETWORK
A network can be built using cables, wireless technology, or a combination of both. In this section I will like to use the Local Area Network i.e a network within a confine area e.g an office or a room as a case study. A LAN can be configured in a variety of ways as mentioned below:
1. Peer to Peer
2. Client/Server
In the Peer to Peer there is no centralized server and each computer acts as a workstation. Although, this section will be used to explain the Client-Server network configuration alone in order to save time.
In the client/server networking, there is a centralized server, which act as a domain controller and it provides the user authentication and other resources and privileges to the client computers. All the client computers are dependent on the server for the resources and services.
If you have more than one computer and are willing to set up a network connection to enable them share files, a printer, an internet connection, or other computer resources between them all then you just have to follow the steps bellow:
1. You need to determine the location of your computers, printer(s) and other devices to connect as well as network equipment needed.
2. Get a network adapter for each computer that does not already have one.Get Category 5e cables.
3. Get a network router or switch.
4. Plug it in! Now that you have all supplies necessary to create your network, you can begin installing it.
5. Provide unique computer names and same workgroup name to all the computers by:
a. Right click My Computer on your desktop and click Properties.
b. In the Network Identification or in the Computer name provide your unique computer and in the Workgroup provide the same workgroup name and click Ok.
c. You will be prompted to restart the computer.
You’re done.
6. Now you can share your files and folders with the other users in your home or office network
BASIC REQUIREMENTS TO SET UP A COMPUTER NETWORK
Setting up a computer network requires a little technical knowledge and requires some software and hardware tools. All networks are made up of basic hardware building blocks to interconnect network nodes. To set up a computer network, the following are important basic things required which include: Network Interface Cards (NICs), Bridges, Hubs, Switches, Routers and special Network softwares to manage the communication between them. In addition, some method of connecting these building blocks is required, usually in the form of galvanic cable (most commonly Category 5 cable). Less common are microwave links (as in IEEE 802.12) or optical cable ("optical fiber"). An Ethernet card may also be required.
THE ETHERNET
Ethernet uses physical wiring to connect devices which is our case study in this report. Frequently deployed devices include hubs, switches, bridges and or routers. Wireless LAN technology is designed to connect devices without wiring. These devices use radio waves or infrared signals as a transmission medium.
NETWORK CABLE CRIMPING
Network cable crimping is a technical term that refers to the process of making an Ethernet cable used for connection. Materials and tool needed in this process include: RJ45 connectors, Cutter/ diag, RJ45 crimping tool, Ethernet cable/Network cable.
Rj45 Connectors Diag Rj45 Crimping Tool Ethernet Cable
There are basically two types of Network Cable viz: the straight cable and the cross cable.
THE STRAIGHT-THROUGH CABLE
The straight cable is normally used when you want to connect your computer/PC to a hub/switch/router. Now, lets go on with the steps on how to crimp/make your own Ethernet/network cable.
1. Use a diag, a scissor or a knife to cut the end of the cable in order to get a straight cut. 2. Now cut the outer rubber layer or also known as the jacket using the wire stripper and you will see four pairs of wires. Each pair has a solid and stripped color each of orange, green, brown, and blue.
2. After that, separate the wires and you will have eight individual wires.
3. Arrange nicely and to the correct sequence of the standard for understand the most.
4. Use a diag or cutter or scissor to cut the wires neatly in a straight line horizontally.
The color sequence to follow when the wire is facing you like the order below starting from the left, using the T-568B Straight-Through Ethernet Cable Standard as case study.
Both End 1 & 2 of Straight Cable will take this form
Stripped Orange,
Orange,
Stripped Green,
Blue,
Stripped Blue,
Green,
Stripped Brown,
Brown.
5. After you have arranged them properly then get one RJ45 plug with the latch side facing down and guide the wires into the plug.
6. Make sure each wire go in its own channel and push the wires as far as it would go.
7. With the wires pushed into the plug, fit the plug in the crimping slot.
8. Stable the cable with one hand and use the other hand to squeeze the crimping tool hard.
You will hear a click that indicates the plug is fasten onto the cable. And you are done with one side of the cable. Flip the cable around and start on the other end which would be assembled exactly the same for straight cable.
The TIA/EIA 568-A standard which was ratified in 1995, was replaced by the TIA/EIA 568-B standard in 2002 and has been updated since. Both standards define the T-568A and T-568B pin-outs for using Unshielded Twisted Pair cable and RJ-45 connectors for Ethernet connectivity. The standards and pin-out specification appear to be related and interchangeable, but are not the same and should not be used interchangeably.
T-568A Straight-Through Ethernet Cable T-568B Straight-Through Ethernet Cable
Both the T-568A and the T-568B standard Straight-Through cables are used most often as patch cords for your Ethernet connections.
THE CROSSOVER CABLE
If you require a cable to connect two Ethernet devices directly together without a hub or when you connect two hubs together, you will need to use a Crossover cable instead.
RJ-45 Crossover Ethernet Cable
A good way of remembering how to wire a Crossover Ethernet cable is to:
1. Wire one end using the T-568A standard and the other end using the T-568B standard or,
2. Another way of remembering the color coding is to simply switch the Green set of wires in place with the Orange set of wires. Specifically, switch the solid Green (G) with the solid Orange, and switch the green/white with the orange/white.
However, if you have to make a cross cable then you will have to follow the following color sequence.
End 1 of Cross Cable
(from left)
Stripped Orange,
Orange,
Stripped Green,
Blue,
Stripped Blue,
Green,
Stripped Brown,
Brown.
End 2 of Cross Cable
(from left)
Stripped Green,
Green,
Stripped Orange,
Stripped Brown,
Brown,
Orange,
Blue,
Stripped Blue,
After you have arranged the wires at both ends according to the sequence and crimped them, you will have your cross cable Completed.
POINTS TO NOTE ABOUT CRIMPING
1. A straight-thru cable has identical ends.
2. A crossover cable has different ends.
3. A straight-thru is used as a patch cord in Ethernet connections.
4. A crossover is used to connect two Ethernet devices without a hub or for connecting two hubs.
5. A crossover has one end with the Orange set of wires switched with the Green set.
6. Odd numbered pins are always striped, even numbered pins are always solid colored.
7. Looking at the RJ-45 with the clip facing away from you, Brown is always on the right, and pin 1 is on the left.
8. No more than 1/2" of the Ethernet cable should be untwisted otherwise it will be susceptible to crosstalk.
9. Do not deform, do not bend, do not stretch, do not staple, do not run parallel with power cables, and do not run Ethernet cables near noise inducing components.
BASIC THEORY
By looking at a T-568A UTP Ethernet straight-thru cable and an Ethernet crossover cable with a T-568B end, we see that the TX (transmitter) pins are connected to the corresponding RX (receiver) pins, plus to plus and minus to minus. You can also see that both the blue and brown wire pairs on pins 4, 5, 7, and 8 are not used in either standard.
What you may not realize is that, these same pins 4, 5, 7, and 8 are not used or required in 100BASE-TX as well. So why bother using these wires, well for one thing its simply easier to make a connection with all the wires grouped together. Otherwise you'll be spending time trying to fit those tiny little wires into each of the corresponding holes in the RJ-45 connector.
CONNECTION METHOD
Computer networks can be classified according to the hardware and software technology that is used to interconnect the individual devices in the network, such as optical fiber, Ethernet, Wireless LAN, HomePNA, Power line communication or G.hn.
CHAPTER THREE
GETTING CONNECTED TO THE INTERNET
Having known all these details about a computer network i.e how to set up a home or small office network, you need also to know how to connect the local area network to the internet. To do this you need to find an Internet service provider (ISP), and choose a connection type.
The first step in connecting to the Internet is to find an Internet service provider (ISP). The most important services offered by Internet Service Providers should include:
Internet access, instant messaging, online gaming, E-mail service, spam filtering that reduces, but does not eliminate, unwanted messages.
INTERNET CONNECTION TYPES
1. CABLE MODEMS: The best performing and most affordable option available to customers, most cable TV providers offer broadband Internet access.
2. DIGITAL SUSCRIBER LINE: An excellent choice for businesses, DSL typically offers better reliability than cable modems. However, DSL tends to be more expensive than cable modems for similar levels of service.
3. DIAL-UP: The slowest method of connecting to the Internet, dial-up enables you to connect to the Internet using your existing phone lines. Dial-up is convenient because it is available to any location with a phone. However, slow performance makes using the Internet frustrating.
4. SATELLITE: Satellite broadband services provide high-speed Internet access to any location with a clear view of the sky. The cost of satellite services is significantly higher than other services. While you can transfer large files quickly with satellite, browsing the Web or playing online games can seem slower than with dial-up because of the delay caused by sending signals to and from satellites.
INTERNET PROTOCOL
Discussions on computer network or the internet can never be complete without talking about the Internet Protocol.
The Internet Protocol (IP) is a protocol used for communicating data across a packet-switched internetwork using the Internet Protocol Suite, also referred to as TCP/IP.
INTERNET CONNECTION SHARING
To use Internet Connection Sharing to share your Internet connection, the host computer must have one network adapter that is configured to connect to the internal network to be named LAN , and one network adapter or modem that is configured to connect to the Internet to be named WAN.
On the host computer (Server System), follow these steps to share the Internet connection:
1. Log on to the host computer as Administrator or as Owner.
2. Click Start, and then click Control Panel.
3. Click Network and Internet Connections.
4. Click Network Connections.
5. Right-click the connection that you use to connect to the Internet. For example, if you connect to the Internet by using a modem, right-click the connection that you want under Dial-up.
6. Click Properties.
7. Click the Advanced tab.
8. Under Internet Connection Sharing, select the Allow other network users to connect through this computer's Internet connection check box.
9. If you are sharing a dial-up Internet connection, select the Establish a dial-up connection whenever a computer on my network attempts to access the Internet check box if you want to permit your computer to automatically connect to the Internet.
10. Click OK. You receive the following message:
When Internet Connection Sharing is enabled, your LAN adapter will be set to use IP address 192.168.0.1. Your computer may lose connectivity with other computers on your network. If these other computers have static IP addresses, it is a good idea to set them to obtain their IP addresses automatically. Are you sure you want to enable Internet Connection Sharing?
11. Click Yes.
The connection to the Internet is shared to other computers on the local area network (LAN). The network adapter that is connected to the LAN is configured with a static IP address of 192.168.0.1 and a subnet mask of 255.255.255.0.
12. Run the Network Setup Wizard on the other computers on the network.
BANDWIDTH
Internet bandwidth (the speed at which your computer can send and receive information) is measured in either Kbps (kilobits per second) or Mbps (megabits per second). If you are lucky enough to have multiple broadband options in your area, compare these factors:
1. DOWNSTREAM BANDWIDTH: This is the speed with which your computer can receive information from the Internet. The higher the downstream bandwidth, the faster your computer can display Web pages, transfer music, and download files.
2. UPDTREAM BANDWIDTH: This is the amount of data your computer can send to the Internet. This isn't important if you just plan to read e-mail and surf the Web, because your computer only needs to send a small request in order to receive a large Web page or e-mail. However, if you're into online gaming or you want to send large
WHAT IS A COMPUTER WORKGROUP
In computer networking, a workgroup is a collection of computers on a local area network (LAN) that share common resources and responsibilities. Workgroups provide easy sharing of files, printers and other network resources. Being a peer-to-peer (P2P) network design, each workgroup computer may both share and access resources if configured to do so.
The Microsoft Windows family of operating systems supports assigning of computers to named workgroups. Macintosh networks offer a similiar capability through the use of AppleTalk zones. The Open Source software package Samba allows Unix and Linux systems to join existing Windows workgroups.
Workgroups are designed for small LANs in homes, schools, and small businesses. A Windows Workgroup, for example, functions best with 15 or fewer computers. As the number of computers in a workgroup grows, workgroup LANs eventually become too difficult to administer and should be replaced with alternative solutions like domains or other client/server approaches
WEB BROWSERS
A web browser is a software application for retrieving, presenting, and traversing information resources on the World Wide Web. An information resource is identified by a Uniform Resource Identifier (URI) and may be a web page, image, video, or other piece of content. Hyperlinks present in resources enable users to easily navigate their browsers to related resources.Although browsers are primarily intended to access the World Wide Web, they can also be used to access information provided by Web servers in private networks or files in file systems. Some browsers can be also used to save information resources to file systems.
Examples of common web browsers are: Internet Explorer, Mozilla Firefox, Opera, Safari, Google Chrome etc.
SECURITY MEASURES IN AN INTERNET CAFE
It is of great importance to have a comprehensive security system measure in place in a cyber cafe to ensure that people do not have access to other people’s personal data and allow people to do business across the internet on any computer in a trusted manner. The following are some of the devices that can be used as a security in a cyber cafe operation.
1. THE USE OF PASSWORD AND USER NAME: The use of users name and passwords will only give access to an authorized customers for a specific period of time. The use of long passwords that will be difficult to guess is recommended in order to maximize security.
2. SPYWARE: Spyware is a general term used to describe software that performs certain behaviors, generally without appropriately obtaining your consent first, such as
Advertising,collection of personal information, changing the configuration of your computer.
Spyware is often associated with software that displays advertisements (called adware) or software that tracks personal or sensitive information. It can be used as personnel supervision on the Internet due to the nature of work performs by some workers.
Spywares can also be used as a tool used by the cyber café operator to monitor people’s activities while browsing on the Internet.
9. EARLYON CAFÉ CENTRA: This is an Internet café software designed to monitor and manage all computers totally or individually on the network in an internet cafe.
CafeCentra’s client-server architecture ensures that billing is central and administered also in real-time. It allows account creation for prospective client users in advance on the server in bulk and the printing of tickets with account information for users. Accounts created on the server can be used on any computer running the client software on the local area network on which the server has been installed.
Server administrators can monitor computers on which the client software is running in real-time and remotely administer such actions as remote PC Rebooting, Shutdown, Active User Logout and Pausing of Client and information about other applications running on the client computers.
5. ANTIVIRUS: Antivirus (or anti-virus) software is used to prevent, detect, and remove malware, including computer viruses, worms, and trojan horses. Such programs may also prevent and remove adware, spyware, and other forms of malware.
A variety of strategies are typically employed. Signature-based detection involves searching for known malicious patterns in executable code. However, it is possible for a user to be infected with new malware for which no signature exists yet.
DEEPFREEZE DOFTWARE: Deep Freeze, by Faronics, is an application available for the Microsoft Windows, Mac OS X, and SUSE Linux operating systems which allows system administrators to protect the core operating system and configuration files on a workstation or server by restoring a computer back to its original configuration each time the computer restarts.[1]
Deep Freeze is a kernel-level driver that protects hard drive integrity by redirecting information being written to the hard drive or partition, leaving the original data intact. This redirected information is no longer referenced once the computer is restarted, thus restoring the system to its original state at the disk sector level. This allows users to make 'virtual' changes to the system, giving them the appearance that they can modify core files or even delete them, and even make the system unusable to themselves, but upon reboot the originally configured 'frozen' state of the operating system is restored.
To make changes, a system administrator must 'thaw' the protected partition by disabling Deep Freeze, make any needed changes, and then 'freeze' it again by re-enabling Deep Freeze. These changes become part of the protected partition and will be maintained after restarts. 'Freezing' and 'thawing' can be done at the workstation level or remotely via the Deep Freeze Enterprise Console.
Deep Freeze can also protect a computer from harmful malware as it automatically deletes downloaded files when the computer is restarted.
Deep Freeze only protects workstations in a "fresh-booted" state. That is, Deep Freeze prevents permanent tampering with protected hard drives/partitions across reboots, but user activity between restarts is not limited by the program. For example, Deep Freeze does not prevent application installation; a user could install a modified version of a Web browser (but seemingly harmless to the unknowing user) designed to secretly send users' passwords to a server connected to the Internet. As a workaround, Deep Freeze can be configured to restart after user logout, shutdown after a chosen period of inactivity, or restart/shutdown at a scheduled time in an attempt to ensure that no such installations are retained (as rebooting the system returns the system to its original, unmodified state).
TROUBLESHOOTING GENERAL NETWORK CONNECTIVITY PROBLEMS
1. HOW TO RESOLVE “LIMITED OR NO CONNECTIVITY PROBLEM”: When attempting to set up or make network connections on a Windows computer, you may encounter a Limited Or No Connectivity error message similar to the following: Limited or no connectivity; The connection has limited or no connectivity. You might not be unable to access the Internet or some network resources. This message can result from any of several different technical glitches or configuration problems. Follow these steps to resolve Limited Or No Connectivity errors in Windows.
(A.) Determine whether your network access is functioning properly (that you can reach local network resources and the Internet). If you are using a broadband Internet and Windows XP Service Pack 2, this message is often a false error report.
(B.) If your network access is non-functional, then continue to the following steps:
1. If your computer connects to the network through a broadband router , resetting (powering off and on) the router may resolve the issue. If not using a broadband router, or if resetting your router only temporarily resolves the issue and the error message re-appears later, continue to the following steps.
2. If connecting to your network using Wi-Fi and using wireless security, your WEP or other security key may not be set properly. Check the wireless security configuration on your computer's network adapter and update if it necessary.
3. If connecting to your network using an Ethernet cable, your cable might have failed. Temporarily replace your network cable with a new one to determine whether this resolves the issue.
4. If using a broadband router and DHCP on your network, check your computer's IP address to verify it is valid and not a private address that starts with 169.254. An invalid address of the form 169.254.x.x signifies your computer's inability to obtain a usable IP address from your router.
To resolve DHCP configuration problems, proceed to the following steps.
5. Reboot your computer, router (if present) and broadband modem together, then re-test your connection.
6. If your connection remains non-functional, run the Windows Network Repair utility on your computer.
7. If your connection remains non-functional, update your router settings to change from dynamic to static IP address configuration, and set an IP address on the computer appropriately.
8. If your connection remains non-functional, unplug your router and connect the computer directly to your broadband modem. If this configuration is functional, contact the manufacturer of your router for additional support.
9. If your computer is connecting to your network directly through a broadband modem, or if your Internet access remains non-functional after following the instructions above, contact your Internet Service provider for support.
2. HOW TO RESOLVE DUPLICATE NAME EXISTS ON THE NETWORK
After starting up a Microsoft Windows computer connected to a local network, you may see the error message "Duplicate name exists." What does this error message signify, and how can you resolve it?
The "Duplicate name exists" error indicates the (NetBIOS) name of the Windows computer conflicts with some other name on the network. Most commonly, this happens when another Windows computer on the local network uses the same name. This error can also occur when one of the connected Windows workgroups has the same name as the computer.
"Duplicate name exists" errors prevent a Windows computer from joining the network. The computer will start up and function in an offline mode only. To resolve this error, simply change the name of the computer to one that is not used by other local computers (or Windows workgroups), then reboot.
Note that a network administrator should also verify the Windows Internet Naming Service (WINS) is up to date. In rare instances, "Duplicate name exists" is a false error reported when old information is stored in the WINS database.
3. FIXING NETWORK CABLE UMPLUGED ERRORA IN WINDOWS
If your network is not functioning properly, you may see "A Network Cable Is Unplugged" messages appear repeatedly on the Windows desktop. Messages may pop up on the screen once every few days or even once every few minutes depending on the nature of the problem. This can occur even if you are using a Wi-Fi wireless network. How can this problem be fixed?
Several possible causes of "A Network Cable Is Unplugged" messages exist. The error message appears on a computer when an installed Ethernet adapter is seeking to make a network connection.
Try the following tips to resolve your problem:
• Disable the Ethernet network adapter if you are not using it. This applies, for example, when running a WiFi home network with computers that have built-in Ethernet adapters. To disable the adapter, double-click the small Network Cable Unplugged error window and choose the Disable option.
• Check both ends of the Ethernet cable connected to the adapter to ensure they are not loose.
• Replace the Ethernet cable with a different one to verify the cable is not damaged.
• Update the network adapter driver software from the manufacturer's Web site.
• Change the Link Speed and Duplex settings (using Device Manager) to use "100 Mbps Full Duplex" or "10 Mbps Full Duplex" instead of Auto Detect.
• Replace the Ethernet network adapter if it is a removable PCI or PCMCIA card. First remove and re-insert the existing adapter hardware to verify the card is connected properly. If necessary, also replace it with a different card.
• The device your Ethernet adapter is connected to, such as a broadband modem or network router may be malfunctioning. Troubleshoot these devices as needed
3. HOW TO RESOLVE I.P CONFLICT ON A NETWORK
An IP address conflict occurs when two computers on a LAN (local area network) or the Internet have been assigned the same IP address. IP conflicts between two computers normally render either one or both of them unusable for network operations.
This problem, though rare, can occur because of the following reasons:
1. Two computers are assigned the same static IP addresses
2. One computer is assigned a static IP address that falls into the DHCP range for the local network and the same address is assigned to a computer by the DHCP server
3. A laptop is put into sleep mode and then turned on while connected to another network that uses the same IP address
4. If you have multiple network adapters, it is possible for a to have an IP address conflict with itself .
5. Often this occurs when the network or part of a network is not using DHCP to automatically assign IP addresses to computers, and something on the network has been manually assigned the same IP address as you.
6. If your computer has DHCP enabled, often simply rebooting the computer allowing it to get a new address assigned to it will resolve the issue.
7. If you're not sure if you're using DHCP or are using a static IP address, either try to locate the computer or device using the IP address or manually change your IP address to something else. For example, if the address was 192.168.1.105 changing it to 192.168.1.112.
CONCLUTION
DEFINITION OF TERMS
Held in
SKY INFORMATION CENTRE
Opp. Lautech Car Park, Stadium, Ogbomoso, Oyo State.
By
Ojo Joshua Oluwadamilola
(ND/08/COM/FT/***)
Submitted to the department of ******** *******,
K**** S**** Polytechnic, I*****
(September 21-December 21 2009)
ACKNOWLEDGEMENTS
With the deepest gratitude I wish to thank the Almighty God for the grace and enablement he gave me to be able to compile this report, glory be to God.
I would also like to acknowledge and express my gratitude to every person who has come into my life and inspired, touched, and illuminated me through their presence.
I would like to acknowledge and express my gratitude to the following people for their magnificent support and contributions to my journey and to the creation of this I.T report, for generously sharing there love, money, ideas, in lieu of this I pay homage to my parents Engr. & Dns. Rotimi Ojo for giving me a good education right from my childhood.
Also, my family for their magnificent support and contributions, my big uncle Chief J.O. Oladokun, Mr. Temidayo Abayomi Winner (Director Sky Infornation Centre, Ogbomoso), Mr. & Mrs. A. Ajala, Mr. & Mrs. M. Tilewa, Miss. Ojo Esther Oluwatoyin, Mr. Ojo Emmanuel Odunayo, Mr. Oladokun Bolutife, Oladokun Abimbola .O, Mr. Oladokun Enoch .T, Mr. Oladokun Theophilus .K.
Finally, I am grateful to my dear friends for there support in and out of school Mr. Taiwo Yemi Sanuel,Mr. Oyedeji Benjamen Oyedemi and Mr. Agunbiade Peter , and also to my dear classmates Mr. Aselebe Michael Oluwasegun, Mr. Raheem Akeem Ishola, Mr. Mohammad Taiwo, Mr. Ogungbinle Babatunde Sheriff, Miss. .. Olanike and Yetunde etc
CHAPTER ONE
INTRODUCTION AND HISTORY OF THE ORGANIZATION
Sky Information Centre, is an organization that deals with and organizes training for young computer students. The organization was established in February 2006 and since it establishment it has been a training centre for secondary school students and other institutions within it reach.
It has different sectors, that is different fields in areas of Information Communication Technology (I.C.T). It has well equip state of art experienced trainers and officers.
The aim of this organization is to contribute it quota to the development of the nation’s information technology. The organization is divided into five different departments
ORGANIZATIONAL CHART
THE DIRECTOR
THE MANAGER
I
SECRETARY
I
ADMIN - ACADEMICS- PUBLIC RELATION-ENGINEERING-PRODUCTION (Cashiers).
The organization is located along under G road, opposite Lautech car park, stadium area, ogbomoso, oyo state.
CHAPTER TWO
INTERNET DEFINITION
The Internet is a global system of interconnected governmental, academic, corporate, public, and private computer networks. It is based on the networking technologies of the Internet Protocol Suite. It is the successor of the Advanced Research Projects Agency Network (ARPANET)
INTERNET CAFE
An internet café or cybercafé is a place where one can use a computer with Internet access, most for a fee, usually per hour or minute; sometimes one can have unmetered access with a pass for a day or month, etc also known as Bulk time.
COMPUTER NETWORKS
A computer network, often simply referred to as a network, is a collection of computers and devices connected by communications channels that facilitates communications among users and allows users to share resources with other users. Networks may be classified according to a wide variety of characteristics. This report provides a general overview of types and categories and also presents the basic components of a simple Local Area Network network.
ADVANTAGES OF A NETWORK
1. Facilitates Communication: By using a network, people can communicate efficiently and easily via e-mail, instant messaging, chat rooms, telephony, video telephone calls, and videoconferencing etc.
2. Helps To Share Computer Hardwares Easily: In a networked environment, each computer on a network can access and use hardware on the network. Suppose several personal computers on a network each require the use of a laser printer. If the personal computers and a laser printer are connected to a network, each user can then access the laser printer on the network, as they need it.
3. Sharing files, data, and information: In a networked environment, any authorized user can access data and information stored on other computers on the network. The capability of providing access to data and information on shared storage devices is an important feature of many networks.
4. Sharing softwares: Users connected to a network can access application programs easily other computers on the network.
DISADVANTAGES OF A NETWORK
1. If a network file server develops a fault, then users may not be able to run application programs
2. A fault on the network can cause users to loose data (if the files being worked upon are not saved)
3. If the network stops operating, then it may not be possible to access various resources
4. It is difficult to make the system secure from hackers, novices or industrial espionage
5. Decisions on resource planning tend to become centralized, for example, what word processor is used, what printers are bought, e.t.c.
6. Networks that have grown with little thought can be inefficient in the long term.
As traffic increases on a network, the performance degrades unless it is designed properly
7. The larger the network becomes, the more difficult it is to manage.
8. If something goes wrong with the file server the whole network is unable to operate.
9. The technical skills needed to manage a network are much higher than working on a stand-alone computer.It would take a long time to install software applications on each computer - one at a time
10. It can be frustrating to print to a printer in another room - and then find after a long trek - that there is no paper in the printer!
11. Users may use up too much of the storage space and this may cause problems on the network
12. Users may use too much bandwidth - for example when listening to music files or watching video clips - preventing others from using the network facilities properly
TYPES OF COMPUTER NETWORKS
Common types of computer networks may be identified by their scale.
Computer network design can range from simple to very complex. Networking can be as simple as connecting two computers, or a computer and a printer, while more complex networks can involve the connection of millions of computers and devices. A brief outline of different computer network types:
1. Personal Area Network (PAN): The smallest type of network, a PAN simply involves connecting one person's computer to a number of devices or peripherals. Usually, all devices, such as printers, PDAs, and telephones, are within a few feet of the computer. A PAN can also refer to a connection to the internet.
2. Local Area Network (LAN): If you have a home network with two or more computers or you are connected to other computers at your workplace, then you are on a LAN. LANs are ideal for networking in a small geographical area and can either work with cables and hubs, or wirelessly. They allow for the speedy transfer of data up to 10Gbit/s. Most LANs are based on Ethernet technology. Wireless Local Area Networks are known as WLANs.
3. Metropolitan Area Network (MAN): A MAN usually consists of a number of interconnected LANs and WANs, but will not extend beyond the boundaries of a town, city, or metropolitan area.
4. Wide Area Network (WAN): The WAN is the next step up from the MAN because it can cross metropolitan or even national boundaries. The best known WAN is the internet and, like all WANs, it uses routers and public communication links to carry data. While the internet is open to all, many WANs are run by private companies and are restricted.
There are more network type, ranging from the Canpus Area Network (CAN), Desktop Area Network (DAN) to the much, much bigger Global Area Network (GAN). etc
NETWORK TOPOLOGY
In Computer Networking “topology” refers to the layout, architecture , shape, structure or design of the connected devices. Network Topologies can be physical or logical.
Computer network topologies can be categorized in the following categories: Bus, Star, Ring , Mesh, Tree etc. Hybrid networks are the complex networks, which can be built of two or more above mentioned topologies.
1. Bus Topology : Bus topology uses a common backbone to connect all the network devices in a network in a linear shape. A single cable functions as the shared communication medium for all the devices attached with this cable with an interface connector. The device, which wants to communicate send the broadcast message to all the devices attached with the shared cable but only the intended recipient actually accepts and process that message.
2. Ring Topology: In ring Network, every computer or devices has two adjacent neighbors for communication. In a ring network, all the communication messages travel in the same directory whether clockwise or anti clockwise. Any damage of the cable of any computer or device can result in the breakdown of the whole network. Ring topology now has become almost obsolete.
3. Star Topology: All the computers in the star topologies are connected to central devices like hub, switch or router. In the computer networking world the most commonly used topology in LAN is the star topology.
As compared to the bus topology, a star network requires more devices & cables to complete a network. The failure of each node or cable in a star network, won’t take down the entire network as compared to the Bus topology. However if the central connecting devices such as hub, switch or router fails due to any reason,then ultimately all the network can come down or collapse.
4. Tree Topology : Tree topology comprises of the multiple star topologies on a bus. Tree topologies integrate multiple star topologies together onto a bus. Only the hub devices can connect directly with the tree bus and each Hub functions as a root of a tree of the network devices. This bus/star/hybrid combination supports future expandability of the computer networks, much better than a bus or star.
Topologies are the important part of the network design theory. A better network can be built if you have the knowledge of these topologies and if you know the difference between each topology.
HOW TO SET UP A COMPUTER NETWORK
A network can be built using cables, wireless technology, or a combination of both. In this section I will like to use the Local Area Network i.e a network within a confine area e.g an office or a room as a case study. A LAN can be configured in a variety of ways as mentioned below:
1. Peer to Peer
2. Client/Server
In the Peer to Peer there is no centralized server and each computer acts as a workstation. Although, this section will be used to explain the Client-Server network configuration alone in order to save time.
In the client/server networking, there is a centralized server, which act as a domain controller and it provides the user authentication and other resources and privileges to the client computers. All the client computers are dependent on the server for the resources and services.
If you have more than one computer and are willing to set up a network connection to enable them share files, a printer, an internet connection, or other computer resources between them all then you just have to follow the steps bellow:
1. You need to determine the location of your computers, printer(s) and other devices to connect as well as network equipment needed.
2. Get a network adapter for each computer that does not already have one.Get Category 5e cables.
3. Get a network router or switch.
4. Plug it in! Now that you have all supplies necessary to create your network, you can begin installing it.
5. Provide unique computer names and same workgroup name to all the computers by:
a. Right click My Computer on your desktop and click Properties.
b. In the Network Identification or in the Computer name provide your unique computer and in the Workgroup provide the same workgroup name and click Ok.
c. You will be prompted to restart the computer.
You’re done.
6. Now you can share your files and folders with the other users in your home or office network
BASIC REQUIREMENTS TO SET UP A COMPUTER NETWORK
Setting up a computer network requires a little technical knowledge and requires some software and hardware tools. All networks are made up of basic hardware building blocks to interconnect network nodes. To set up a computer network, the following are important basic things required which include: Network Interface Cards (NICs), Bridges, Hubs, Switches, Routers and special Network softwares to manage the communication between them. In addition, some method of connecting these building blocks is required, usually in the form of galvanic cable (most commonly Category 5 cable). Less common are microwave links (as in IEEE 802.12) or optical cable ("optical fiber"). An Ethernet card may also be required.
THE ETHERNET
Ethernet uses physical wiring to connect devices which is our case study in this report. Frequently deployed devices include hubs, switches, bridges and or routers. Wireless LAN technology is designed to connect devices without wiring. These devices use radio waves or infrared signals as a transmission medium.
NETWORK CABLE CRIMPING
Network cable crimping is a technical term that refers to the process of making an Ethernet cable used for connection. Materials and tool needed in this process include: RJ45 connectors, Cutter/ diag, RJ45 crimping tool, Ethernet cable/Network cable.
Rj45 Connectors Diag Rj45 Crimping Tool Ethernet Cable
There are basically two types of Network Cable viz: the straight cable and the cross cable.
THE STRAIGHT-THROUGH CABLE
The straight cable is normally used when you want to connect your computer/PC to a hub/switch/router. Now, lets go on with the steps on how to crimp/make your own Ethernet/network cable.
1. Use a diag, a scissor or a knife to cut the end of the cable in order to get a straight cut. 2. Now cut the outer rubber layer or also known as the jacket using the wire stripper and you will see four pairs of wires. Each pair has a solid and stripped color each of orange, green, brown, and blue.
2. After that, separate the wires and you will have eight individual wires.
3. Arrange nicely and to the correct sequence of the standard for understand the most.
4. Use a diag or cutter or scissor to cut the wires neatly in a straight line horizontally.
The color sequence to follow when the wire is facing you like the order below starting from the left, using the T-568B Straight-Through Ethernet Cable Standard as case study.
Both End 1 & 2 of Straight Cable will take this form
Stripped Orange,
Orange,
Stripped Green,
Blue,
Stripped Blue,
Green,
Stripped Brown,
Brown.
5. After you have arranged them properly then get one RJ45 plug with the latch side facing down and guide the wires into the plug.
6. Make sure each wire go in its own channel and push the wires as far as it would go.
7. With the wires pushed into the plug, fit the plug in the crimping slot.
8. Stable the cable with one hand and use the other hand to squeeze the crimping tool hard.
You will hear a click that indicates the plug is fasten onto the cable. And you are done with one side of the cable. Flip the cable around and start on the other end which would be assembled exactly the same for straight cable.
The TIA/EIA 568-A standard which was ratified in 1995, was replaced by the TIA/EIA 568-B standard in 2002 and has been updated since. Both standards define the T-568A and T-568B pin-outs for using Unshielded Twisted Pair cable and RJ-45 connectors for Ethernet connectivity. The standards and pin-out specification appear to be related and interchangeable, but are not the same and should not be used interchangeably.
T-568A Straight-Through Ethernet Cable T-568B Straight-Through Ethernet Cable
Both the T-568A and the T-568B standard Straight-Through cables are used most often as patch cords for your Ethernet connections.
THE CROSSOVER CABLE
If you require a cable to connect two Ethernet devices directly together without a hub or when you connect two hubs together, you will need to use a Crossover cable instead.
RJ-45 Crossover Ethernet Cable
A good way of remembering how to wire a Crossover Ethernet cable is to:
1. Wire one end using the T-568A standard and the other end using the T-568B standard or,
2. Another way of remembering the color coding is to simply switch the Green set of wires in place with the Orange set of wires. Specifically, switch the solid Green (G) with the solid Orange, and switch the green/white with the orange/white.
However, if you have to make a cross cable then you will have to follow the following color sequence.
End 1 of Cross Cable
(from left)
Stripped Orange,
Orange,
Stripped Green,
Blue,
Stripped Blue,
Green,
Stripped Brown,
Brown.
End 2 of Cross Cable
(from left)
Stripped Green,
Green,
Stripped Orange,
Stripped Brown,
Brown,
Orange,
Blue,
Stripped Blue,
After you have arranged the wires at both ends according to the sequence and crimped them, you will have your cross cable Completed.
POINTS TO NOTE ABOUT CRIMPING
1. A straight-thru cable has identical ends.
2. A crossover cable has different ends.
3. A straight-thru is used as a patch cord in Ethernet connections.
4. A crossover is used to connect two Ethernet devices without a hub or for connecting two hubs.
5. A crossover has one end with the Orange set of wires switched with the Green set.
6. Odd numbered pins are always striped, even numbered pins are always solid colored.
7. Looking at the RJ-45 with the clip facing away from you, Brown is always on the right, and pin 1 is on the left.
8. No more than 1/2" of the Ethernet cable should be untwisted otherwise it will be susceptible to crosstalk.
9. Do not deform, do not bend, do not stretch, do not staple, do not run parallel with power cables, and do not run Ethernet cables near noise inducing components.
BASIC THEORY
By looking at a T-568A UTP Ethernet straight-thru cable and an Ethernet crossover cable with a T-568B end, we see that the TX (transmitter) pins are connected to the corresponding RX (receiver) pins, plus to plus and minus to minus. You can also see that both the blue and brown wire pairs on pins 4, 5, 7, and 8 are not used in either standard.
What you may not realize is that, these same pins 4, 5, 7, and 8 are not used or required in 100BASE-TX as well. So why bother using these wires, well for one thing its simply easier to make a connection with all the wires grouped together. Otherwise you'll be spending time trying to fit those tiny little wires into each of the corresponding holes in the RJ-45 connector.
CONNECTION METHOD
Computer networks can be classified according to the hardware and software technology that is used to interconnect the individual devices in the network, such as optical fiber, Ethernet, Wireless LAN, HomePNA, Power line communication or G.hn.
CHAPTER THREE
GETTING CONNECTED TO THE INTERNET
Having known all these details about a computer network i.e how to set up a home or small office network, you need also to know how to connect the local area network to the internet. To do this you need to find an Internet service provider (ISP), and choose a connection type.
The first step in connecting to the Internet is to find an Internet service provider (ISP). The most important services offered by Internet Service Providers should include:
Internet access, instant messaging, online gaming, E-mail service, spam filtering that reduces, but does not eliminate, unwanted messages.
INTERNET CONNECTION TYPES
1. CABLE MODEMS: The best performing and most affordable option available to customers, most cable TV providers offer broadband Internet access.
2. DIGITAL SUSCRIBER LINE: An excellent choice for businesses, DSL typically offers better reliability than cable modems. However, DSL tends to be more expensive than cable modems for similar levels of service.
3. DIAL-UP: The slowest method of connecting to the Internet, dial-up enables you to connect to the Internet using your existing phone lines. Dial-up is convenient because it is available to any location with a phone. However, slow performance makes using the Internet frustrating.
4. SATELLITE: Satellite broadband services provide high-speed Internet access to any location with a clear view of the sky. The cost of satellite services is significantly higher than other services. While you can transfer large files quickly with satellite, browsing the Web or playing online games can seem slower than with dial-up because of the delay caused by sending signals to and from satellites.
INTERNET PROTOCOL
Discussions on computer network or the internet can never be complete without talking about the Internet Protocol.
The Internet Protocol (IP) is a protocol used for communicating data across a packet-switched internetwork using the Internet Protocol Suite, also referred to as TCP/IP.
INTERNET CONNECTION SHARING
To use Internet Connection Sharing to share your Internet connection, the host computer must have one network adapter that is configured to connect to the internal network to be named LAN , and one network adapter or modem that is configured to connect to the Internet to be named WAN.
On the host computer (Server System), follow these steps to share the Internet connection:
1. Log on to the host computer as Administrator or as Owner.
2. Click Start, and then click Control Panel.
3. Click Network and Internet Connections.
4. Click Network Connections.
5. Right-click the connection that you use to connect to the Internet. For example, if you connect to the Internet by using a modem, right-click the connection that you want under Dial-up.
6. Click Properties.
7. Click the Advanced tab.
8. Under Internet Connection Sharing, select the Allow other network users to connect through this computer's Internet connection check box.
9. If you are sharing a dial-up Internet connection, select the Establish a dial-up connection whenever a computer on my network attempts to access the Internet check box if you want to permit your computer to automatically connect to the Internet.
10. Click OK. You receive the following message:
When Internet Connection Sharing is enabled, your LAN adapter will be set to use IP address 192.168.0.1. Your computer may lose connectivity with other computers on your network. If these other computers have static IP addresses, it is a good idea to set them to obtain their IP addresses automatically. Are you sure you want to enable Internet Connection Sharing?
11. Click Yes.
The connection to the Internet is shared to other computers on the local area network (LAN). The network adapter that is connected to the LAN is configured with a static IP address of 192.168.0.1 and a subnet mask of 255.255.255.0.
12. Run the Network Setup Wizard on the other computers on the network.
BANDWIDTH
Internet bandwidth (the speed at which your computer can send and receive information) is measured in either Kbps (kilobits per second) or Mbps (megabits per second). If you are lucky enough to have multiple broadband options in your area, compare these factors:
1. DOWNSTREAM BANDWIDTH: This is the speed with which your computer can receive information from the Internet. The higher the downstream bandwidth, the faster your computer can display Web pages, transfer music, and download files.
2. UPDTREAM BANDWIDTH: This is the amount of data your computer can send to the Internet. This isn't important if you just plan to read e-mail and surf the Web, because your computer only needs to send a small request in order to receive a large Web page or e-mail. However, if you're into online gaming or you want to send large
WHAT IS A COMPUTER WORKGROUP
In computer networking, a workgroup is a collection of computers on a local area network (LAN) that share common resources and responsibilities. Workgroups provide easy sharing of files, printers and other network resources. Being a peer-to-peer (P2P) network design, each workgroup computer may both share and access resources if configured to do so.
The Microsoft Windows family of operating systems supports assigning of computers to named workgroups. Macintosh networks offer a similiar capability through the use of AppleTalk zones. The Open Source software package Samba allows Unix and Linux systems to join existing Windows workgroups.
Workgroups are designed for small LANs in homes, schools, and small businesses. A Windows Workgroup, for example, functions best with 15 or fewer computers. As the number of computers in a workgroup grows, workgroup LANs eventually become too difficult to administer and should be replaced with alternative solutions like domains or other client/server approaches
WEB BROWSERS
A web browser is a software application for retrieving, presenting, and traversing information resources on the World Wide Web. An information resource is identified by a Uniform Resource Identifier (URI) and may be a web page, image, video, or other piece of content. Hyperlinks present in resources enable users to easily navigate their browsers to related resources.Although browsers are primarily intended to access the World Wide Web, they can also be used to access information provided by Web servers in private networks or files in file systems. Some browsers can be also used to save information resources to file systems.
Examples of common web browsers are: Internet Explorer, Mozilla Firefox, Opera, Safari, Google Chrome etc.
SECURITY MEASURES IN AN INTERNET CAFE
It is of great importance to have a comprehensive security system measure in place in a cyber cafe to ensure that people do not have access to other people’s personal data and allow people to do business across the internet on any computer in a trusted manner. The following are some of the devices that can be used as a security in a cyber cafe operation.
1. THE USE OF PASSWORD AND USER NAME: The use of users name and passwords will only give access to an authorized customers for a specific period of time. The use of long passwords that will be difficult to guess is recommended in order to maximize security.
2. SPYWARE: Spyware is a general term used to describe software that performs certain behaviors, generally without appropriately obtaining your consent first, such as
Advertising,collection of personal information, changing the configuration of your computer.
Spyware is often associated with software that displays advertisements (called adware) or software that tracks personal or sensitive information. It can be used as personnel supervision on the Internet due to the nature of work performs by some workers.
Spywares can also be used as a tool used by the cyber café operator to monitor people’s activities while browsing on the Internet.
9. EARLYON CAFÉ CENTRA: This is an Internet café software designed to monitor and manage all computers totally or individually on the network in an internet cafe.
CafeCentra’s client-server architecture ensures that billing is central and administered also in real-time. It allows account creation for prospective client users in advance on the server in bulk and the printing of tickets with account information for users. Accounts created on the server can be used on any computer running the client software on the local area network on which the server has been installed.
Server administrators can monitor computers on which the client software is running in real-time and remotely administer such actions as remote PC Rebooting, Shutdown, Active User Logout and Pausing of Client and information about other applications running on the client computers.
5. ANTIVIRUS: Antivirus (or anti-virus) software is used to prevent, detect, and remove malware, including computer viruses, worms, and trojan horses. Such programs may also prevent and remove adware, spyware, and other forms of malware.
A variety of strategies are typically employed. Signature-based detection involves searching for known malicious patterns in executable code. However, it is possible for a user to be infected with new malware for which no signature exists yet.
DEEPFREEZE DOFTWARE: Deep Freeze, by Faronics, is an application available for the Microsoft Windows, Mac OS X, and SUSE Linux operating systems which allows system administrators to protect the core operating system and configuration files on a workstation or server by restoring a computer back to its original configuration each time the computer restarts.[1]
Deep Freeze is a kernel-level driver that protects hard drive integrity by redirecting information being written to the hard drive or partition, leaving the original data intact. This redirected information is no longer referenced once the computer is restarted, thus restoring the system to its original state at the disk sector level. This allows users to make 'virtual' changes to the system, giving them the appearance that they can modify core files or even delete them, and even make the system unusable to themselves, but upon reboot the originally configured 'frozen' state of the operating system is restored.
To make changes, a system administrator must 'thaw' the protected partition by disabling Deep Freeze, make any needed changes, and then 'freeze' it again by re-enabling Deep Freeze. These changes become part of the protected partition and will be maintained after restarts. 'Freezing' and 'thawing' can be done at the workstation level or remotely via the Deep Freeze Enterprise Console.
Deep Freeze can also protect a computer from harmful malware as it automatically deletes downloaded files when the computer is restarted.
Deep Freeze only protects workstations in a "fresh-booted" state. That is, Deep Freeze prevents permanent tampering with protected hard drives/partitions across reboots, but user activity between restarts is not limited by the program. For example, Deep Freeze does not prevent application installation; a user could install a modified version of a Web browser (but seemingly harmless to the unknowing user) designed to secretly send users' passwords to a server connected to the Internet. As a workaround, Deep Freeze can be configured to restart after user logout, shutdown after a chosen period of inactivity, or restart/shutdown at a scheduled time in an attempt to ensure that no such installations are retained (as rebooting the system returns the system to its original, unmodified state).
TROUBLESHOOTING GENERAL NETWORK CONNECTIVITY PROBLEMS
1. HOW TO RESOLVE “LIMITED OR NO CONNECTIVITY PROBLEM”: When attempting to set up or make network connections on a Windows computer, you may encounter a Limited Or No Connectivity error message similar to the following: Limited or no connectivity; The connection has limited or no connectivity. You might not be unable to access the Internet or some network resources. This message can result from any of several different technical glitches or configuration problems. Follow these steps to resolve Limited Or No Connectivity errors in Windows.
(A.) Determine whether your network access is functioning properly (that you can reach local network resources and the Internet). If you are using a broadband Internet and Windows XP Service Pack 2, this message is often a false error report.
(B.) If your network access is non-functional, then continue to the following steps:
1. If your computer connects to the network through a broadband router , resetting (powering off and on) the router may resolve the issue. If not using a broadband router, or if resetting your router only temporarily resolves the issue and the error message re-appears later, continue to the following steps.
2. If connecting to your network using Wi-Fi and using wireless security, your WEP or other security key may not be set properly. Check the wireless security configuration on your computer's network adapter and update if it necessary.
3. If connecting to your network using an Ethernet cable, your cable might have failed. Temporarily replace your network cable with a new one to determine whether this resolves the issue.
4. If using a broadband router and DHCP on your network, check your computer's IP address to verify it is valid and not a private address that starts with 169.254. An invalid address of the form 169.254.x.x signifies your computer's inability to obtain a usable IP address from your router.
To resolve DHCP configuration problems, proceed to the following steps.
5. Reboot your computer, router (if present) and broadband modem together, then re-test your connection.
6. If your connection remains non-functional, run the Windows Network Repair utility on your computer.
7. If your connection remains non-functional, update your router settings to change from dynamic to static IP address configuration, and set an IP address on the computer appropriately.
8. If your connection remains non-functional, unplug your router and connect the computer directly to your broadband modem. If this configuration is functional, contact the manufacturer of your router for additional support.
9. If your computer is connecting to your network directly through a broadband modem, or if your Internet access remains non-functional after following the instructions above, contact your Internet Service provider for support.
2. HOW TO RESOLVE DUPLICATE NAME EXISTS ON THE NETWORK
After starting up a Microsoft Windows computer connected to a local network, you may see the error message "Duplicate name exists." What does this error message signify, and how can you resolve it?
The "Duplicate name exists" error indicates the (NetBIOS) name of the Windows computer conflicts with some other name on the network. Most commonly, this happens when another Windows computer on the local network uses the same name. This error can also occur when one of the connected Windows workgroups has the same name as the computer.
"Duplicate name exists" errors prevent a Windows computer from joining the network. The computer will start up and function in an offline mode only. To resolve this error, simply change the name of the computer to one that is not used by other local computers (or Windows workgroups), then reboot.
Note that a network administrator should also verify the Windows Internet Naming Service (WINS) is up to date. In rare instances, "Duplicate name exists" is a false error reported when old information is stored in the WINS database.
3. FIXING NETWORK CABLE UMPLUGED ERRORA IN WINDOWS
If your network is not functioning properly, you may see "A Network Cable Is Unplugged" messages appear repeatedly on the Windows desktop. Messages may pop up on the screen once every few days or even once every few minutes depending on the nature of the problem. This can occur even if you are using a Wi-Fi wireless network. How can this problem be fixed?
Several possible causes of "A Network Cable Is Unplugged" messages exist. The error message appears on a computer when an installed Ethernet adapter is seeking to make a network connection.
Try the following tips to resolve your problem:
• Disable the Ethernet network adapter if you are not using it. This applies, for example, when running a WiFi home network with computers that have built-in Ethernet adapters. To disable the adapter, double-click the small Network Cable Unplugged error window and choose the Disable option.
• Check both ends of the Ethernet cable connected to the adapter to ensure they are not loose.
• Replace the Ethernet cable with a different one to verify the cable is not damaged.
• Update the network adapter driver software from the manufacturer's Web site.
• Change the Link Speed and Duplex settings (using Device Manager) to use "100 Mbps Full Duplex" or "10 Mbps Full Duplex" instead of Auto Detect.
• Replace the Ethernet network adapter if it is a removable PCI or PCMCIA card. First remove and re-insert the existing adapter hardware to verify the card is connected properly. If necessary, also replace it with a different card.
• The device your Ethernet adapter is connected to, such as a broadband modem or network router may be malfunctioning. Troubleshoot these devices as needed
3. HOW TO RESOLVE I.P CONFLICT ON A NETWORK
An IP address conflict occurs when two computers on a LAN (local area network) or the Internet have been assigned the same IP address. IP conflicts between two computers normally render either one or both of them unusable for network operations.
This problem, though rare, can occur because of the following reasons:
1. Two computers are assigned the same static IP addresses
2. One computer is assigned a static IP address that falls into the DHCP range for the local network and the same address is assigned to a computer by the DHCP server
3. A laptop is put into sleep mode and then turned on while connected to another network that uses the same IP address
4. If you have multiple network adapters, it is possible for a to have an IP address conflict with itself .
5. Often this occurs when the network or part of a network is not using DHCP to automatically assign IP addresses to computers, and something on the network has been manually assigned the same IP address as you.
6. If your computer has DHCP enabled, often simply rebooting the computer allowing it to get a new address assigned to it will resolve the issue.
7. If you're not sure if you're using DHCP or are using a static IP address, either try to locate the computer or device using the IP address or manually change your IP address to something else. For example, if the address was 192.168.1.105 changing it to 192.168.1.112.
CONCLUTION
DEFINITION OF TERMS
Saturday, January 9, 2010
Sunday, December 20, 2009
Tuesday, December 1, 2009
Data Recovery Utility
Product File Scavenger® - Data Recovery Program.
Platforms Windows® 7, Vista, XP, 2008, 2003, 2000 and NT 4.0.
Media Hard disks, floppy disks, ZIP disks, memory sticks, flash cards, RAIDs, and more.
Types of files All types.
Causes of data loss Accidental deletion, removal from the Recycle Bin.
Corrupt disk, reformatted or deleted volume or partition.
Partially damaged disk with bad spots.
Broken RAID or spanned volume.
Recovered information Original filename, contents, folder path and dates.
File systems NTFS, FAT 32/16/12.
Languages English, Dutch, French, German, Italian, Japanese, Spanish, and Swedish.
Other features Both dynamic and basic disks, Unicode filenames.
Compressed NTFS volumes, NTFS alternate data streams.
User Manual PDF, HTML.
Related Program Read and clone bad hard drives with Disk Recoup™
Buy for $ 49.00 Download demo Read reviews
Clone bad hard drives
with Disk Recoup™
File Scavenger® - Data Recovery Utility
File Scavenger® Version 3 is a file "undelete" and data recovery utility for Windows XP®, Windows 7, Vista®, Windows Server 2003®, Windows 2000®, Windows NT® and Windows ME/98/95®. File Scavenger® can recover files that have been accidentally deleted (including files removed from the Recycle Bin, in a DOS window, from a network drive, from Windows Explorer with the SHIFT key held down) provided that recovery is attempted before the files are permanently overwritten by new data. File Scavenger® supports both basic and dynamic disks, NTFS compression, alternate data streams, sparse files, Unicode filenames, etc. Except in severe cases, both the file and the folder path leading to the file can be recovered.
File Scavenger® can also recover files from a reformatted or corrupted volume even when the volume has been deleted and its original position and size are unknown. File Scavenger® can scan an entire physical hard drive to look for traces of defunct volumes.
File Scavenger® uses advanced algorithms to handle disks with bad sectors and badly corrupted partitions. It can be installed on a hard drive or run from a portable storage device such as a memory stick, removable drive, CD or floppy disk. To run File Scavenger®, you must log on as a system administrator to the computer where data recovery is intended.
Files can only be restored if the disk areas allocated to the files have not been overwritten by new data. All recovered files should be validated for the integrity of the recovered data.
Buy for $ 49.00 Download demo Read reviews
File Scavenger® - Awards and Certification
Rated best and best value data recovery tool, Computer Bild #21/2007 (largest German computer magazine).
Rated "must-have" by Maximum PC.
Featured in PC World video.
Important Information: Maximizing your chance of successful recovery
What you do after data is lost will decide whether it can be recovered or not. Certain activities may result in permanent loss of data.
Immediately protect the subject drive to ensure no new data is written to it. Then follow one of the procedures below, depending on the circumstance and available resources:
Recovery procedures for a system drive.
Best recovery procedure (more work).
95% efficient recovery procedure (less work).
Recovery procedure for a data drive.
Customer Reviews
Click on a name below to view the user's comments.
"... this outfit sells a solid product and backs it up!!!"
Gary Mickelson - Park Rapids, MN
"Your product has saved my life and our business..."
David Law - Director-Redwood Entertainment Pty. Ltd.
"The competition would either lock up or crash my computer when they tried to scan this funky drive"
Ron Shook - Forum Host for Discreet edit* and Incite/Matrox Non-Linear Editors at www.creativecow.net
"God Bless America and Quetek engineers......!!!"
Marc Jones - UK
Read More ....
Screenshot
Features
Compared to version 2.1, version 3 can find lost data in more scenarios, run much faster, scan very large disks (containing several million files) and support FAT and FAT32 volumes. The interface has been greatly streamlined. There are new commands to save and reload a session to avoid having to rescan a disk.
Features:
Recovers the original filename and folder path.
Recovers files deleted from a network share. (File Scavenger must be run on the computer where the share is defined.)
Recovers files deleted in a DOS command window.
Recovers files removed from the Recycle Bin.
Recovers files deleted from Windows Explorer with the SHIFT key held down.
Recovers data from reformatted volumes.
Recovers files from deleted volumes.
Is especially effective in recovering digital images in JPEG format.
Recovers files from broken striped volumes (RAID 0 or RAID 5) or volume sets (spanned volumes).
Supports NTFS compression.
Provides English, Dutch, French, German, Italian, Japanese, Spanish, and Swedish versions.
Supports both basic and dynamic disks.
Transparently handles bad sectors when possible. Otherwise allows the user to skip ranges of bad sectors.
Scans badly damaged partitions.
Supports alternate data streams and sparse files.
Can search for file patterns or file types.
Recovers multiple files in one click.
Can sort files by date, size, name, type, path, etc.
Restores the original Create and Modified dates.
Supports Unicode filenames.
Scans very large volumes (hundreds of gigabytes) holding up to several million files or more on a computer with sufficient RAM.
Detects certain file types based on their data patterns, thus allowing recovery even when the file system structure is totally lost.
Saves a search session to a disk file for reloading later so that a drive needs not be scanned again.
Scans disk image files.
Supports FAT and FAT32, but in a limited manner due to the inherent weakness in those file systems.
Licensing
License type Features Usage Price (USD)
Personal Use All features except
RAID & spanned volume reconstruction On one specific computer
with provisions for
a second test computer $ 49.00
Personal Use
with RAID-0 reconstruction All features except
RAID5 & spanned volume reconstruction On one specific computer
with provisions for
a second test computer $ 89.00
Professional Use All features On any computer by one person $185.00
A Personal Use license is intended for individual use and can be used on a single computer. A Personal Use license can be transferred from the original computer to a second computer in the following scenarios:
The original computer is being retired and replaced by the second computer.
The license is bought for the original computer for testing. The actual use is intended for the second computer.
The right to transfer licenses is not intended to allow a Personal Use license to be used as a floating license among multiple computers.
A Professional Use license is intended for a computer support person who needs to use the program on other people's computers. A Professional Use license is registered to a named individual and can be used by the individual on any computer. A Professional Use license can be transferred to a second individual when the original licensee no longer intends to use the product, such as in the case of permanent change in job assignments. The right to transfer licenses is not intended to allow a Professional Use license to be shared by multiple users.
To request a license transfer, please click here.
Platforms Windows® 7, Vista, XP, 2008, 2003, 2000 and NT 4.0.
Media Hard disks, floppy disks, ZIP disks, memory sticks, flash cards, RAIDs, and more.
Types of files All types.
Causes of data loss Accidental deletion, removal from the Recycle Bin.
Corrupt disk, reformatted or deleted volume or partition.
Partially damaged disk with bad spots.
Broken RAID or spanned volume.
Recovered information Original filename, contents, folder path and dates.
File systems NTFS, FAT 32/16/12.
Languages English, Dutch, French, German, Italian, Japanese, Spanish, and Swedish.
Other features Both dynamic and basic disks, Unicode filenames.
Compressed NTFS volumes, NTFS alternate data streams.
User Manual PDF, HTML.
Related Program Read and clone bad hard drives with Disk Recoup™
Buy for $ 49.00 Download demo Read reviews
Clone bad hard drives
with Disk Recoup™
File Scavenger® - Data Recovery Utility
File Scavenger® Version 3 is a file "undelete" and data recovery utility for Windows XP®, Windows 7, Vista®, Windows Server 2003®, Windows 2000®, Windows NT® and Windows ME/98/95®. File Scavenger® can recover files that have been accidentally deleted (including files removed from the Recycle Bin, in a DOS window, from a network drive, from Windows Explorer with the SHIFT key held down) provided that recovery is attempted before the files are permanently overwritten by new data. File Scavenger® supports both basic and dynamic disks, NTFS compression, alternate data streams, sparse files, Unicode filenames, etc. Except in severe cases, both the file and the folder path leading to the file can be recovered.
File Scavenger® can also recover files from a reformatted or corrupted volume even when the volume has been deleted and its original position and size are unknown. File Scavenger® can scan an entire physical hard drive to look for traces of defunct volumes.
File Scavenger® uses advanced algorithms to handle disks with bad sectors and badly corrupted partitions. It can be installed on a hard drive or run from a portable storage device such as a memory stick, removable drive, CD or floppy disk. To run File Scavenger®, you must log on as a system administrator to the computer where data recovery is intended.
Files can only be restored if the disk areas allocated to the files have not been overwritten by new data. All recovered files should be validated for the integrity of the recovered data.
Buy for $ 49.00 Download demo Read reviews
File Scavenger® - Awards and Certification
Rated best and best value data recovery tool, Computer Bild #21/2007 (largest German computer magazine).
Rated "must-have" by Maximum PC.
Featured in PC World video.
Important Information: Maximizing your chance of successful recovery
What you do after data is lost will decide whether it can be recovered or not. Certain activities may result in permanent loss of data.
Immediately protect the subject drive to ensure no new data is written to it. Then follow one of the procedures below, depending on the circumstance and available resources:
Recovery procedures for a system drive.
Best recovery procedure (more work).
95% efficient recovery procedure (less work).
Recovery procedure for a data drive.
Customer Reviews
Click on a name below to view the user's comments.
"... this outfit sells a solid product and backs it up!!!"
Gary Mickelson - Park Rapids, MN
"Your product has saved my life and our business..."
David Law - Director-Redwood Entertainment Pty. Ltd.
"The competition would either lock up or crash my computer when they tried to scan this funky drive"
Ron Shook - Forum Host for Discreet edit* and Incite/Matrox Non-Linear Editors at www.creativecow.net
"God Bless America and Quetek engineers......!!!"
Marc Jones - UK
Read More ....
Screenshot
Features
Compared to version 2.1, version 3 can find lost data in more scenarios, run much faster, scan very large disks (containing several million files) and support FAT and FAT32 volumes. The interface has been greatly streamlined. There are new commands to save and reload a session to avoid having to rescan a disk.
Features:
Recovers the original filename and folder path.
Recovers files deleted from a network share. (File Scavenger must be run on the computer where the share is defined.)
Recovers files deleted in a DOS command window.
Recovers files removed from the Recycle Bin.
Recovers files deleted from Windows Explorer with the SHIFT key held down.
Recovers data from reformatted volumes.
Recovers files from deleted volumes.
Is especially effective in recovering digital images in JPEG format.
Recovers files from broken striped volumes (RAID 0 or RAID 5) or volume sets (spanned volumes).
Supports NTFS compression.
Provides English, Dutch, French, German, Italian, Japanese, Spanish, and Swedish versions.
Supports both basic and dynamic disks.
Transparently handles bad sectors when possible. Otherwise allows the user to skip ranges of bad sectors.
Scans badly damaged partitions.
Supports alternate data streams and sparse files.
Can search for file patterns or file types.
Recovers multiple files in one click.
Can sort files by date, size, name, type, path, etc.
Restores the original Create and Modified dates.
Supports Unicode filenames.
Scans very large volumes (hundreds of gigabytes) holding up to several million files or more on a computer with sufficient RAM.
Detects certain file types based on their data patterns, thus allowing recovery even when the file system structure is totally lost.
Saves a search session to a disk file for reloading later so that a drive needs not be scanned again.
Scans disk image files.
Supports FAT and FAT32, but in a limited manner due to the inherent weakness in those file systems.
Licensing
License type Features Usage Price (USD)
Personal Use All features except
RAID & spanned volume reconstruction On one specific computer
with provisions for
a second test computer $ 49.00
Personal Use
with RAID-0 reconstruction All features except
RAID5 & spanned volume reconstruction On one specific computer
with provisions for
a second test computer $ 89.00
Professional Use All features On any computer by one person $185.00
A Personal Use license is intended for individual use and can be used on a single computer. A Personal Use license can be transferred from the original computer to a second computer in the following scenarios:
The original computer is being retired and replaced by the second computer.
The license is bought for the original computer for testing. The actual use is intended for the second computer.
The right to transfer licenses is not intended to allow a Personal Use license to be used as a floating license among multiple computers.
A Professional Use license is intended for a computer support person who needs to use the program on other people's computers. A Professional Use license is registered to a named individual and can be used by the individual on any computer. A Professional Use license can be transferred to a second individual when the original licensee no longer intends to use the product, such as in the case of permanent change in job assignments. The right to transfer licenses is not intended to allow a Professional Use license to be shared by multiple users.
To request a license transfer, please click here.
Friday, November 27, 2009
Search found 45 matches on edaboard.com: microcontroller sms nokia
Search found 45 matches on edaboard.com: microcontroller sms nokia
Related: nokia 3310 sms send sms nokia 3310 nokia sms and avr nokia 3310 send sms 8051
EDAboard.com Forum Index
gsm sms 8051 controlling relays
dear friends, ok .. thr is a lot of discussions on sending the sms through mobile phonelets now talk abt receiving sms and making a relay on with 8051 controller. if some one has done anything.. about this using at commands, please share it---> reply...
Microcontrollers :: 13 Oct 2009 16:33 :: vicky89 :: Replies: 54 :: Views: 6517
which mobile supports at commands ..?
dear friends, can any one tel me.. which mobile supports at commands ..? thanks in advance. rony....
Microcontrollers :: 23 Sep 2009 7:45 :: seadolphine2000 :: Replies: 7 :: Views: 747
gsm controlled door latch with security autodial-up??????
oding. our modern telephone and even mobile phone uses dtmf coding for number dialing. these dtmf codes can be decoded and utilized for useful purposes. the circuit utilizes ic8870 for dtmf decoding. microcontroller 89c51 reads these codes and takes ...
Electronic Elementary Questions :: 14 Sep 2009 3:22 :: GSM Man :: Replies: 6 :: Views: 399
sending and receiving sms from 89c51 uart
hai- alli design a controller system using mcs51 (at89c51) and i want the unit to be able sending and receiving message string to handphone via sms using its uart. kindly help me if you have any sample programs in assembler.thanks a lotbasid...
Professional Hardware and Electronics Design :: 03 Aug 2009 12:21 :: viji_raghava :: Replies: 14 :: Views: 3113
microcontroller based home automation
hey friends . please help me to build the home automation circuit using atmel8051. please tel me how to connect the nokia phones and send sms through the phone. please...
Microcontrollers :: 14 Jul 2009 4:33 :: yogamohan.86 :: Replies: 3 :: Views: 636
smart house with sms - what type of phone, program?
guys i need help here!im working on final year project for this year, my project is using a mobile phone just as a modem to send and receive sms control by the pc, and the pic microcontroller is use to control the house system by respond to what the ...
Professional Hardware and Electronics Design :: 19 Jun 2009 14:07 :: GSM Man :: Replies: 5 :: Views: 879
sms controlled switch
my project is a sms controlled switch using pic, i only have a little idea on pic programing. can anyone help me on this project? i need a circuit diagram and program code for the pic....
Microcontrollers :: 07 Jun 2009 5:19 :: ericyeoh :: Replies: 22 :: Views: 2886
pic sms control
hai, could anybody help me on how to built a device (pic) connected to handphone and pc where i can control input just by sending sms. i already search through internet and iam trying to built one. could anybody help me. i want to use pic16f84a as th...
Microcontrollers :: 30 May 2009 21:16 :: geev88 :: Replies: 60 :: Views: 40514
how to send an sms??
loping a security system where i require to send an sms, through electronic means, not by manual dialing, now i know one solution could be to hook up each individual button on a cell phone and have a microcontroller dial it by successively shorting e...
Microcontrollers :: 22 May 2009 15:29 :: davemaster :: Replies: 33 :: Views: 10755
how to write at-commands on an mcu?
hi everyone,.. i know that this topic might be repeated but im really confused. i have a nokia 6610 and i want to connect it with pic16f877 via serial cable. my only problem is: how to write the at-commands in basic or c languages? for example: at+c...
Microcontrollers :: 09 Mar 2009 22:45 :: moeen :: Replies: 82 :: Views: 20872
sms based home security
could anybody share their design about a nokia 3310 interfaced with a pic16f877a. im actually building a sms home security using nokia 3310 and pic16f877a. ive been through to some links that discusses the same as this like embedtronics but i want so...
Microcontrollers :: 04 Mar 2009 5:52 :: zanu :: Replies: 4 :: Views: 771
interfaceing nokia handphone to microcontroller
hi, im currently working on a project which needs to interface a nokia handphone to a microcontroller. the handphone is used to send signals to the micorcontroller when it receives sms and also send back notifications to the sender when a signal is s...
RF, Microwave, Antennas and Optics :: 10 Jan 2009 1:49 :: lukeluke :: Replies: 7 :: Views: 1140
counter with sms notification
hello , i am currently doing my final year project.my project is to build a counter which able to send out sms when its being counted through a cell phone.i will b using pic16f84ap to b the microcontroller. ive read some post which regarding using no...
Microcontrollers :: 08 Jan 2009 8:17 :: cgteoh :: Replies: 2 :: Views: 285
sms module
hi everybodydo you know a low cost sms module?a module that to be able to send only sms no need for voice,i dont need gsm modem module....
Microcontrollers :: 01 Sep 2008 14:23 :: joby16 :: Replies: 5 :: Views: 462
pic_mobile
is anyone who knows if is possible to send msn from a pic to mobile and if is posible who to implement this applecation...
Microcontrollers :: 14 Jun 2008 17:35 :: dohasaleh :: Replies: 8 :: Views: 1200
how to use microcontroller to control nokia to send sms
lp !!!i’m currently working on a rfid based vehicle tracking device, and ill be using a gsm phone to send data via sms from the vehicle to another gsm phone. the question is , how can i interface the microcontroller unit to the gsm phone......
Microcontrollers :: 06 May 2008 19:07 :: JulioSilva :: Replies: 43 :: Views: 20294
interface between pic and nokia 3310
i want to interface with nokia 3310 just for dailing to another mobilethen i dont have any idea about interfaceing, can you guide me to start from zero i mean step by step?i bought used mobile nokia 3310 and serial cable for it.then my aim is to make...
Microcontrollers :: 23 Apr 2008 9:35 :: hassan1980 :: Replies: 6 :: Views: 996
gsm programing in microcontroller
how can i program a nokia handset/mobile phone to interface/interact to my microcontroller (atmega32l)? please send me some codes and even sample program about this topic. i have a at command for nokia handset but how can i used it. thanks for readin...
Microcontrollers :: 08 Apr 2008 14:00 :: filjoa :: Replies: 6 :: Views: 627
about gsm interface to a microcontroller
how can i program a microcontroller (atmega32l) to communicate to a mobile phone such as nokia models? can you please send me some samples and even some program that can i try it. for example, what ever the value of the microcontroller that is attac...
Embedded Systems and Real-Time OS :: 04 Apr 2008 17:55 :: nandhu015 :: Replies: 1 :: Views: 261
nokia 3310 sms sending using z8encore microcontroller(help!)
how can i get modem log/hex codes for this?where can i found some discussions on how to get these hex codes?please mail me if you know...rynx2004@yahoo.comthanx!...
Microcontrollers :: 14 Mar 2008 7:55 :: penoy_balut :: Replies: 1 :: Views: 222
sms based device control
i am doing a project on controlling a device by sms.the procedures i need to follow are i will send sms message from my phone to the mobile connected to 8051 micro controller ,the micro controller send signals to devices connected to it to control t...
Hobby Circuits and Small Projects Problems :: 25 Feb 2008 8:00 :: H_D_R :: Replies: 1 :: Views: 366
gsm sms messages
hi guys,ive been working on a project which involves sending sms messages from a pic to a gsm phone. so far, my goal was to make it to work in text mode, but the phone doesnt seem to like the cable connection, it only works on irda in text mode. ther...
Microcontrollers :: 16 Dec 2007 20:17 :: softjad :: Replies: 34 :: Views: 20750
8051 + at commands using nokia phone
kindly send me a helping hand, thank you..im using a microcontroller 8051 to interface with nokia 8250, and im using at commands to send sms through 8250.i have a question here, do i need to wait to receive the response from the phone (e.g. ok)after ...
Microcontrollers :: 21 Nov 2007 10:51 :: nan_ishan :: Replies: 76 :: Views: 6429
control nokia 3310
hi, i final year student.now i doing one project need to focus on sms. beginning i plan using gsm moderm but the problem is it is too expensive.so now i need to use 3310 to do this project. anyone know any program that can control the nokia 3310 when...
Microcontrollers :: 18 Nov 2007 22:37 :: inifinitrix :: Replies: 38 :: Views: 7471
microcontroller and gsm cellphone [help]
i had an idea of a hobby project in mind, but seem to be difficult for me...im planning to use pic16f84 (suggest any in case not feasible) i want my microcontroller to sense inputs from a logic circuit, then if a logic combination is satisfied (a c...
Hobby Circuits and Small Projects Problems :: 23 Jul 2007 6:38 :: dharmeshpitroda :: Replies: 6 :: Views: 705
is there a difference between dlr-3 and dlr-3p ?
hi all i am trying to send sms using the pic microcontrller and a nokia 6210 and a dlr-3 data cable. everything works fine from the pc but when i do it fron my microcontroller without the nokia cable my microcontroller sends out the correct at comma...
Microcontrollers :: 23 Jun 2007 18:33 :: BOB_SANTANA :: Replies: 0 :: Views: 195
pic16f877a interface gsm sms phone
as control for certain relays. i am using they pic16f877a as mcu main controller. can anybody help me in trying to send the at commands like the at + cmgl = 4 command serially to the phone from the microcontroller. i have been doing try to send an ...
Microcontrollers :: 25 May 2007 14:21 :: BEN AISSA ABDELKADER :: Replies: 19 :: Views: 4731
cellular phone interfacing
hi folks!can anyone tell the best nokia unit i can use for a project that i am working on. i need to be able to send and receive sms via a microcontroller. also, the microcontroller must be able to know the signal strength as well as the battery leve...
Microcontrollers :: 19 Apr 2007 15:21 :: suriadin01 :: Replies: 13 :: Views: 996
sms protocol
looking for specifications or tutorial about the protocol used to send sms.the aim is using a plc connected to a standard modem to send alarms.i think it s the tap protocol but i havent find anything really interestingabout it....
PC Programming and Interfacing :: 03 Mar 2007 13:27 :: umup :: Replies: 48 :: Views: 12502
sms controller from silicon chip magazine
people here willing to build an sms controller. i decided to scan and attach the article sms controller published in the octomber-november 2004 issue of silicon chip magazine. the hex file for the microcontroller is included also....
Microcontrollers :: 21 Feb 2007 10:18 :: l_senthilkumar :: Replies: 43 :: Views: 6714
sms home appliances controller
hi everyone!we are having our thesis right now. our project is a sms home appliances controller. we will be using a pic16f84a microcontroller and a nokia 6210 cellphone. we will also use a max232 ic.. we have learned that we should use at commands in...
Microcontrollers :: 30 Jan 2007 14:47 :: umup :: Replies: 8 :: Views: 759
urgent
i want to connect a mobile to a microcontroller using an fbus for our project...its baud rate requirement is 115200bps....is it necessary to use pic micro controller or can i do the above using some other microcontroller based on 8051...also what is ...
Hobby Circuits and Small Projects Problems :: 27 Jan 2007 11:58 :: budhy :: Replies: 10 :: Views: 449
sms & microcontroller
can i send sms to a mobile using a microcontroller at89s52 ????...
Microcontrollers :: 14 Sep 2006 16:04 :: mehdi_394 :: Replies: 6 :: Views: 804
urgent help for connecting mobile to microcontroller
hi alli have a nokia 6150 and i want connect that to microcontroller and send and recive sms . i know it is possible connect that to pc and use nokia suit for send and recive sms and i know it isnot support at command but iwant know how i can connect...
Microcontrollers :: 29 Jul 2006 1:39 :: courtara :: Replies: 7 :: Views: 414
elektor magazine with microcontroller and fbus?
had there been an issue from elektor magazine discussing microcontroller and fbus? thanks....
Microcontrollers :: 20 Jul 2006 0:34 :: courtara :: Replies: 4 :: Views: 894
connection betweem microcontroller( pic 16f877a) & mobil
[color=red]hello plz help me to solve a this problem :i want to connect microcontroller with mobile(nokia) to make communication between them & ididnt have information enough because i didnt know what is the role of max 232 exactly...
PC Programming and Interfacing :: 17 Apr 2006 7:56 :: rchinthaka :: Replies: 4 :: Views: 615
sms interface
about sending sms message and be read by your electronic led moving message diplay, what do you think best mobile to be used... is it nokia, siemens, ericson, or what? ive been researching about sms microcontroller that will enable to read messages ...
Microcontrollers :: 29 Aug 2005 8:10 :: ahm_hassaan :: Replies: 4 :: Views: 408
ADS
:: :: :: Replies: :: Views:
moving message display interface to sms (text messaging)
hi hello, im currently having a research on moving message display(led electronic display) be interface to sms (short message service or simply text messaging)... any idea about interface, and things i have to learn first? please help me, it will be ...
PC Programming and Interfacing :: 21 Aug 2005 8:42 :: IanP :: Replies: 1 :: Views: 408
need ideas in pic project
hi all,im a computer engineering student, planning to do my project related to automation control using pic16f877. i still havent decided what kinda automation i wan2 do.so just ask u guys for some ideas and suggestions...maybe some of u might hav pr...
Microcontrollers :: 04 Aug 2005 7:02 :: aldevan :: Replies: 6 :: Views: 543
using microcontroller to interface with h/p nokia 3310
i wish to using microcontroller to interfaced with a handphone nokia 3310, by the main purpose is sending a sms from handphone to another handphone. the contain of the sms is based on the voltage analog to digital input. can some one help to solve th...
Microcontrollers :: 25 Jul 2005 8:30 :: IanP :: Replies: 1 :: Views: 441
car security using sms- mcu-cell-phone interface?
hi. im doing a college project on car security via sms. have a gr8 prolem though. want to knw the best method to interface a cell-phone with the microcontroller.i want to give the cell phone a mcu o/p signal (generated when there is an intrusion) so ...
Hobby Circuits and Small Projects Problems :: 08 Feb 2005 13:18 :: platonas :: Replies: 10 :: Views: 1140
interfacing nokia 3310 to atmel 89c51 microcontroller
roller to send and receive sms. nokia 3310 uses fbus and mbus protocols. fbus is bidirectional and operates at 115200 bps. is it possible to lower the baud rate to 19200 bps/9600 bps to use it with a microcontroller?the mbus protocol is half-duplex a...
Hobby Circuits and Small Projects Problems :: 11 Jan 2005 13:47 :: Epegic :: Replies: 2 :: Views: 3288
interfacing mobile phone with micro-controller
helloi want to connect my mobile phone (nokia 3310) with microcontroller (atmel 89c51) for receiving and sending messages (sms). how it can be done ?? plz give any info related to this topic....
Microcontrollers :: 10 Jan 2005 3:54 :: Saeedafzalkhan :: Replies: 5 :: Views: 669
handphone handshake/interfacing protocol
hi there,i really need help from all of you. how to connect pc or microcontroller to handphone (let say nokia or motorola). what is the pin configuration, handshake protocol and lastly how i want to instruct the handphone to send data (sms) or to ret...
PC Programming and Interfacing :: 12 Jul 2004 16:14 :: ahmad :: Replies: 0 :: Views: 327
nokia phone
someone has tried to comunicate whit a nokia cellular phone??? im tryng to comunicate with a nokia 3320(3360),5120 and 6120and i have some troubles, i made my own cable...
Professional Hardware and Electronics Design :: 08 Jan 2003 21:16 :: minos :: Replies: 8 :: Views: 1420
Related: nokia 3310 sms send sms nokia 3310 nokia sms and avr nokia 3310 send sms 8051
EDAboard.com Forum Index
gsm sms 8051 controlling relays
dear friends, ok .. thr is a lot of discussions on sending the sms through mobile phonelets now talk abt receiving sms and making a relay on with 8051 controller. if some one has done anything.. about this using at commands, please share it---> reply...
Microcontrollers :: 13 Oct 2009 16:33 :: vicky89 :: Replies: 54 :: Views: 6517
which mobile supports at commands ..?
dear friends, can any one tel me.. which mobile supports at commands ..? thanks in advance. rony....
Microcontrollers :: 23 Sep 2009 7:45 :: seadolphine2000 :: Replies: 7 :: Views: 747
gsm controlled door latch with security autodial-up??????
oding. our modern telephone and even mobile phone uses dtmf coding for number dialing. these dtmf codes can be decoded and utilized for useful purposes. the circuit utilizes ic8870 for dtmf decoding. microcontroller 89c51 reads these codes and takes ...
Electronic Elementary Questions :: 14 Sep 2009 3:22 :: GSM Man :: Replies: 6 :: Views: 399
sending and receiving sms from 89c51 uart
hai- alli design a controller system using mcs51 (at89c51) and i want the unit to be able sending and receiving message string to handphone via sms using its uart. kindly help me if you have any sample programs in assembler.thanks a lotbasid...
Professional Hardware and Electronics Design :: 03 Aug 2009 12:21 :: viji_raghava :: Replies: 14 :: Views: 3113
microcontroller based home automation
hey friends . please help me to build the home automation circuit using atmel8051. please tel me how to connect the nokia phones and send sms through the phone. please...
Microcontrollers :: 14 Jul 2009 4:33 :: yogamohan.86 :: Replies: 3 :: Views: 636
smart house with sms - what type of phone, program?
guys i need help here!im working on final year project for this year, my project is using a mobile phone just as a modem to send and receive sms control by the pc, and the pic microcontroller is use to control the house system by respond to what the ...
Professional Hardware and Electronics Design :: 19 Jun 2009 14:07 :: GSM Man :: Replies: 5 :: Views: 879
sms controlled switch
my project is a sms controlled switch using pic, i only have a little idea on pic programing. can anyone help me on this project? i need a circuit diagram and program code for the pic....
Microcontrollers :: 07 Jun 2009 5:19 :: ericyeoh :: Replies: 22 :: Views: 2886
pic sms control
hai, could anybody help me on how to built a device (pic) connected to handphone and pc where i can control input just by sending sms. i already search through internet and iam trying to built one. could anybody help me. i want to use pic16f84a as th...
Microcontrollers :: 30 May 2009 21:16 :: geev88 :: Replies: 60 :: Views: 40514
how to send an sms??
loping a security system where i require to send an sms, through electronic means, not by manual dialing, now i know one solution could be to hook up each individual button on a cell phone and have a microcontroller dial it by successively shorting e...
Microcontrollers :: 22 May 2009 15:29 :: davemaster :: Replies: 33 :: Views: 10755
how to write at-commands on an mcu?
hi everyone,.. i know that this topic might be repeated but im really confused. i have a nokia 6610 and i want to connect it with pic16f877 via serial cable. my only problem is: how to write the at-commands in basic or c languages? for example: at+c...
Microcontrollers :: 09 Mar 2009 22:45 :: moeen :: Replies: 82 :: Views: 20872
sms based home security
could anybody share their design about a nokia 3310 interfaced with a pic16f877a. im actually building a sms home security using nokia 3310 and pic16f877a. ive been through to some links that discusses the same as this like embedtronics but i want so...
Microcontrollers :: 04 Mar 2009 5:52 :: zanu :: Replies: 4 :: Views: 771
interfaceing nokia handphone to microcontroller
hi, im currently working on a project which needs to interface a nokia handphone to a microcontroller. the handphone is used to send signals to the micorcontroller when it receives sms and also send back notifications to the sender when a signal is s...
RF, Microwave, Antennas and Optics :: 10 Jan 2009 1:49 :: lukeluke :: Replies: 7 :: Views: 1140
counter with sms notification
hello , i am currently doing my final year project.my project is to build a counter which able to send out sms when its being counted through a cell phone.i will b using pic16f84ap to b the microcontroller. ive read some post which regarding using no...
Microcontrollers :: 08 Jan 2009 8:17 :: cgteoh :: Replies: 2 :: Views: 285
sms module
hi everybodydo you know a low cost sms module?a module that to be able to send only sms no need for voice,i dont need gsm modem module....
Microcontrollers :: 01 Sep 2008 14:23 :: joby16 :: Replies: 5 :: Views: 462
pic_mobile
is anyone who knows if is possible to send msn from a pic to mobile and if is posible who to implement this applecation...
Microcontrollers :: 14 Jun 2008 17:35 :: dohasaleh :: Replies: 8 :: Views: 1200
how to use microcontroller to control nokia to send sms
lp !!!i’m currently working on a rfid based vehicle tracking device, and ill be using a gsm phone to send data via sms from the vehicle to another gsm phone. the question is , how can i interface the microcontroller unit to the gsm phone......
Microcontrollers :: 06 May 2008 19:07 :: JulioSilva :: Replies: 43 :: Views: 20294
interface between pic and nokia 3310
i want to interface with nokia 3310 just for dailing to another mobilethen i dont have any idea about interfaceing, can you guide me to start from zero i mean step by step?i bought used mobile nokia 3310 and serial cable for it.then my aim is to make...
Microcontrollers :: 23 Apr 2008 9:35 :: hassan1980 :: Replies: 6 :: Views: 996
gsm programing in microcontroller
how can i program a nokia handset/mobile phone to interface/interact to my microcontroller (atmega32l)? please send me some codes and even sample program about this topic. i have a at command for nokia handset but how can i used it. thanks for readin...
Microcontrollers :: 08 Apr 2008 14:00 :: filjoa :: Replies: 6 :: Views: 627
about gsm interface to a microcontroller
how can i program a microcontroller (atmega32l) to communicate to a mobile phone such as nokia models? can you please send me some samples and even some program that can i try it. for example, what ever the value of the microcontroller that is attac...
Embedded Systems and Real-Time OS :: 04 Apr 2008 17:55 :: nandhu015 :: Replies: 1 :: Views: 261
nokia 3310 sms sending using z8encore microcontroller(help!)
how can i get modem log/hex codes for this?where can i found some discussions on how to get these hex codes?please mail me if you know...rynx2004@yahoo.comthanx!...
Microcontrollers :: 14 Mar 2008 7:55 :: penoy_balut :: Replies: 1 :: Views: 222
sms based device control
i am doing a project on controlling a device by sms.the procedures i need to follow are i will send sms message from my phone to the mobile connected to 8051 micro controller ,the micro controller send signals to devices connected to it to control t...
Hobby Circuits and Small Projects Problems :: 25 Feb 2008 8:00 :: H_D_R :: Replies: 1 :: Views: 366
gsm sms messages
hi guys,ive been working on a project which involves sending sms messages from a pic to a gsm phone. so far, my goal was to make it to work in text mode, but the phone doesnt seem to like the cable connection, it only works on irda in text mode. ther...
Microcontrollers :: 16 Dec 2007 20:17 :: softjad :: Replies: 34 :: Views: 20750
8051 + at commands using nokia phone
kindly send me a helping hand, thank you..im using a microcontroller 8051 to interface with nokia 8250, and im using at commands to send sms through 8250.i have a question here, do i need to wait to receive the response from the phone (e.g. ok)after ...
Microcontrollers :: 21 Nov 2007 10:51 :: nan_ishan :: Replies: 76 :: Views: 6429
control nokia 3310
hi, i final year student.now i doing one project need to focus on sms. beginning i plan using gsm moderm but the problem is it is too expensive.so now i need to use 3310 to do this project. anyone know any program that can control the nokia 3310 when...
Microcontrollers :: 18 Nov 2007 22:37 :: inifinitrix :: Replies: 38 :: Views: 7471
microcontroller and gsm cellphone [help]
i had an idea of a hobby project in mind, but seem to be difficult for me...im planning to use pic16f84 (suggest any in case not feasible) i want my microcontroller to sense inputs from a logic circuit, then if a logic combination is satisfied (a c...
Hobby Circuits and Small Projects Problems :: 23 Jul 2007 6:38 :: dharmeshpitroda :: Replies: 6 :: Views: 705
is there a difference between dlr-3 and dlr-3p ?
hi all i am trying to send sms using the pic microcontrller and a nokia 6210 and a dlr-3 data cable. everything works fine from the pc but when i do it fron my microcontroller without the nokia cable my microcontroller sends out the correct at comma...
Microcontrollers :: 23 Jun 2007 18:33 :: BOB_SANTANA :: Replies: 0 :: Views: 195
pic16f877a interface gsm sms phone
as control for certain relays. i am using they pic16f877a as mcu main controller. can anybody help me in trying to send the at commands like the at + cmgl = 4 command serially to the phone from the microcontroller. i have been doing try to send an ...
Microcontrollers :: 25 May 2007 14:21 :: BEN AISSA ABDELKADER :: Replies: 19 :: Views: 4731
cellular phone interfacing
hi folks!can anyone tell the best nokia unit i can use for a project that i am working on. i need to be able to send and receive sms via a microcontroller. also, the microcontroller must be able to know the signal strength as well as the battery leve...
Microcontrollers :: 19 Apr 2007 15:21 :: suriadin01 :: Replies: 13 :: Views: 996
sms protocol
looking for specifications or tutorial about the protocol used to send sms.the aim is using a plc connected to a standard modem to send alarms.i think it s the tap protocol but i havent find anything really interestingabout it....
PC Programming and Interfacing :: 03 Mar 2007 13:27 :: umup :: Replies: 48 :: Views: 12502
sms controller from silicon chip magazine
people here willing to build an sms controller. i decided to scan and attach the article sms controller published in the octomber-november 2004 issue of silicon chip magazine. the hex file for the microcontroller is included also....
Microcontrollers :: 21 Feb 2007 10:18 :: l_senthilkumar :: Replies: 43 :: Views: 6714
sms home appliances controller
hi everyone!we are having our thesis right now. our project is a sms home appliances controller. we will be using a pic16f84a microcontroller and a nokia 6210 cellphone. we will also use a max232 ic.. we have learned that we should use at commands in...
Microcontrollers :: 30 Jan 2007 14:47 :: umup :: Replies: 8 :: Views: 759
urgent
i want to connect a mobile to a microcontroller using an fbus for our project...its baud rate requirement is 115200bps....is it necessary to use pic micro controller or can i do the above using some other microcontroller based on 8051...also what is ...
Hobby Circuits and Small Projects Problems :: 27 Jan 2007 11:58 :: budhy :: Replies: 10 :: Views: 449
sms & microcontroller
can i send sms to a mobile using a microcontroller at89s52 ????...
Microcontrollers :: 14 Sep 2006 16:04 :: mehdi_394 :: Replies: 6 :: Views: 804
urgent help for connecting mobile to microcontroller
hi alli have a nokia 6150 and i want connect that to microcontroller and send and recive sms . i know it is possible connect that to pc and use nokia suit for send and recive sms and i know it isnot support at command but iwant know how i can connect...
Microcontrollers :: 29 Jul 2006 1:39 :: courtara :: Replies: 7 :: Views: 414
elektor magazine with microcontroller and fbus?
had there been an issue from elektor magazine discussing microcontroller and fbus? thanks....
Microcontrollers :: 20 Jul 2006 0:34 :: courtara :: Replies: 4 :: Views: 894
connection betweem microcontroller( pic 16f877a) & mobil
[color=red]hello plz help me to solve a this problem :i want to connect microcontroller with mobile(nokia) to make communication between them & ididnt have information enough because i didnt know what is the role of max 232 exactly...
PC Programming and Interfacing :: 17 Apr 2006 7:56 :: rchinthaka :: Replies: 4 :: Views: 615
sms interface
about sending sms message and be read by your electronic led moving message diplay, what do you think best mobile to be used... is it nokia, siemens, ericson, or what? ive been researching about sms microcontroller that will enable to read messages ...
Microcontrollers :: 29 Aug 2005 8:10 :: ahm_hassaan :: Replies: 4 :: Views: 408
ADS
:: :: :: Replies: :: Views:
moving message display interface to sms (text messaging)
hi hello, im currently having a research on moving message display(led electronic display) be interface to sms (short message service or simply text messaging)... any idea about interface, and things i have to learn first? please help me, it will be ...
PC Programming and Interfacing :: 21 Aug 2005 8:42 :: IanP :: Replies: 1 :: Views: 408
need ideas in pic project
hi all,im a computer engineering student, planning to do my project related to automation control using pic16f877. i still havent decided what kinda automation i wan2 do.so just ask u guys for some ideas and suggestions...maybe some of u might hav pr...
Microcontrollers :: 04 Aug 2005 7:02 :: aldevan :: Replies: 6 :: Views: 543
using microcontroller to interface with h/p nokia 3310
i wish to using microcontroller to interfaced with a handphone nokia 3310, by the main purpose is sending a sms from handphone to another handphone. the contain of the sms is based on the voltage analog to digital input. can some one help to solve th...
Microcontrollers :: 25 Jul 2005 8:30 :: IanP :: Replies: 1 :: Views: 441
car security using sms- mcu-cell-phone interface?
hi. im doing a college project on car security via sms. have a gr8 prolem though. want to knw the best method to interface a cell-phone with the microcontroller.i want to give the cell phone a mcu o/p signal (generated when there is an intrusion) so ...
Hobby Circuits and Small Projects Problems :: 08 Feb 2005 13:18 :: platonas :: Replies: 10 :: Views: 1140
interfacing nokia 3310 to atmel 89c51 microcontroller
roller to send and receive sms. nokia 3310 uses fbus and mbus protocols. fbus is bidirectional and operates at 115200 bps. is it possible to lower the baud rate to 19200 bps/9600 bps to use it with a microcontroller?the mbus protocol is half-duplex a...
Hobby Circuits and Small Projects Problems :: 11 Jan 2005 13:47 :: Epegic :: Replies: 2 :: Views: 3288
interfacing mobile phone with micro-controller
helloi want to connect my mobile phone (nokia 3310) with microcontroller (atmel 89c51) for receiving and sending messages (sms). how it can be done ?? plz give any info related to this topic....
Microcontrollers :: 10 Jan 2005 3:54 :: Saeedafzalkhan :: Replies: 5 :: Views: 669
handphone handshake/interfacing protocol
hi there,i really need help from all of you. how to connect pc or microcontroller to handphone (let say nokia or motorola). what is the pin configuration, handshake protocol and lastly how i want to instruct the handphone to send data (sms) or to ret...
PC Programming and Interfacing :: 12 Jul 2004 16:14 :: ahmad :: Replies: 0 :: Views: 327
nokia phone
someone has tried to comunicate whit a nokia cellular phone??? im tryng to comunicate with a nokia 3320(3360),5120 and 6120and i have some troubles, i made my own cable...
Professional Hardware and Electronics Design :: 08 Jan 2003 21:16 :: minos :: Replies: 8 :: Views: 1420
Nokia sms based home security
zanu
Joined: 25 Feb 2009
Posts: 7
02 Mar 2009 1:30 sms based home security
--------------------------------------------------------------------------------
could anybody share their design about a nokia 3310 interfaced with a PIC16f877a. i'm actually building a sms home security using nokia 3310 and PIC16f877a. i've been through to some links that discusses the same as this like embedtronics but I want some refences like schematic and source code to aid me on my project towards completion. any project that uses nokia 3310 and pic16f877 will do. hopefully somebody would give care to my request.
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gorkin
Joined: 27 Feb 2002
Posts: 679
Helped: 11
02 Mar 2009 21:07 sms home security
--------------------------------------------------------------------------------
Okay, well first maybe a usefull idea check google and find some related material right?
For some things about the FBus protocol:
http://www.gnokii.org/
http://www.embedtronics.com/nokia/fbus.html
Source code for SMS
http://www.affinix.com/~justin/nokia/n61sms.c
Gorkin
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Google
AdSense
02 Mar 2009 21:07 Ads
--------------------------------------------------------------------------------
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zanu
Joined: 25 Feb 2009
Posts: 7
03 Mar 2009 1:04 sms based home security system
--------------------------------------------------------------------------------
Actually I've been to these links and read the important notes regarding my project. Its just that I can't thoroughly understand the content particularly in programming. I already made my FBUS cable using the schematic from ucdevelopers and had been monitoring the communication through serial portmonitor. But i got hold-on in programming aspect. I have a little background in programming and I've learned it on tutorials. Fortunately, you provided me the n61 codes. I've been to gnokii also and I haven't found any source code about n3310. Does this mean that n3310 codes can be made by simply modifying the n61 source codes?
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gorkin
Joined: 27 Feb 2002
Posts: 679
Helped: 11
03 Mar 2009 6:15 home scurity using pic 16f877a
--------------------------------------------------------------------------------
I think that the good way to start after data cable building is try to exchance AT commands using one serial terminal on PC, if all ok then you can start develop uC basead circuit.
Gorkin
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zanu
Joined: 25 Feb 2009
Posts: 7
04 Mar 2009 5:52 home security nokia sms alert
--------------------------------------------------------------------------------
attached is a signal flow diagram of my project.
as far as my research goes, most of the project for SMS only controls the device on or off. does anybody have the idea of how the slave phone can initiate a communication and sent a notification to the master phone automatically?
say for example if i connect a sensor to the microcontroller and it detects something.
how does the circuit would look like?
Joined: 25 Feb 2009
Posts: 7
02 Mar 2009 1:30 sms based home security
--------------------------------------------------------------------------------
could anybody share their design about a nokia 3310 interfaced with a PIC16f877a. i'm actually building a sms home security using nokia 3310 and PIC16f877a. i've been through to some links that discusses the same as this like embedtronics but I want some refences like schematic and source code to aid me on my project towards completion. any project that uses nokia 3310 and pic16f877 will do. hopefully somebody would give care to my request.
Back to top
gorkin
Joined: 27 Feb 2002
Posts: 679
Helped: 11
02 Mar 2009 21:07 sms home security
--------------------------------------------------------------------------------
Okay, well first maybe a usefull idea check google and find some related material right?
For some things about the FBus protocol:
http://www.gnokii.org/
http://www.embedtronics.com/nokia/fbus.html
Source code for SMS
http://www.affinix.com/~justin/nokia/n61sms.c
Gorkin
Back to top
AdSense
02 Mar 2009 21:07 Ads
--------------------------------------------------------------------------------
Back to top
zanu
Joined: 25 Feb 2009
Posts: 7
03 Mar 2009 1:04 sms based home security system
--------------------------------------------------------------------------------
Actually I've been to these links and read the important notes regarding my project. Its just that I can't thoroughly understand the content particularly in programming. I already made my FBUS cable using the schematic from ucdevelopers and had been monitoring the communication through serial portmonitor. But i got hold-on in programming aspect. I have a little background in programming and I've learned it on tutorials. Fortunately, you provided me the n61 codes. I've been to gnokii also and I haven't found any source code about n3310. Does this mean that n3310 codes can be made by simply modifying the n61 source codes?
Back to top
gorkin
Joined: 27 Feb 2002
Posts: 679
Helped: 11
03 Mar 2009 6:15 home scurity using pic 16f877a
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I think that the good way to start after data cable building is try to exchance AT commands using one serial terminal on PC, if all ok then you can start develop uC basead circuit.
Gorkin
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zanu
Joined: 25 Feb 2009
Posts: 7
04 Mar 2009 5:52 home security nokia sms alert
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attached is a signal flow diagram of my project.
as far as my research goes, most of the project for SMS only controls the device on or off. does anybody have the idea of how the slave phone can initiate a communication and sent a notification to the master phone automatically?
say for example if i connect a sensor to the microcontroller and it detects something.
how does the circuit would look like?
Saturday, November 21, 2009
LInk to where you can find tutorials on ccna
http://www.google.co.za/search?source=ig&hl=en&rlz=&q=ccna+test+download%2C+and+bootcamp+provider...&btnG=Google+Search&meta=lr%3D&aq=o&oq=
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