Computer Virus Examples:

• Boot Sector Viruses:
• C-Brain, Stone, Disk Killer, Danish boot, Devel 941 etc.
• File Infecting Viruses:
• Acid rain, Enigma, Nemesis, Cascade, Crazy, Alien .298 etc.
• Macro Viruses:
•  DMV, Nuclear, word concept etc.
• Multipartite Viruses:
• Invader, Flip, Tequila etc. 
• Polymorphic Viruses:
• Chameleon, Cascade, Evil, Phoenix, Proud etc.
• Stealth Virus:
• Frodo, Joshi, Whale, The 4096 virus etc. 
• Parasitic Virus:
• Jerusalam 

Categories following into:
Boot sector virus, file infecting virus, stealth virus, macro virus, polymorphic virus,

• friday the 13th, w97m. melissa, stoned, frodo, involuntary

Multiple Choice Questions (For Online Practice)

• Multiple Choice Questions For Practicing IT Knowledge. 
• For Preparing Computer Operator Examination.
• For Lok Sewa Aayog Exam Preparation.
• For Reminding IT Knowledge.
• The contents may help students in their study and also be fruitful for the candidates preparing for the computer operator examination conducted by different organizations.   
• Multiple Choice Questions For English Grammar Practice.
• Click Here To Go

Choose Correct Answer (Networking And Internet & Email)

Here are the some of the questions for practicing / reminding the networking and internet & email section. It is recommended to practice the same page till not confident on all the 10 questions.

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To Find The Greatest Number From N Number Supplied (Qbasic Code)

To Find The Greatest Number From N Number Supplied (Qbasic Code)

CLS
c = 1
h=0
INPUT "How many numbers do you want to enter"; n
FOR i = 1 TO n
    INPUT "Enter the number"; x
    IF x > h THEN
        h = x
    ELSE
    END IF
NEXT i
PRINT "The highest number is"; h
END

Next Method  Using WHILE .... WEND

•  CLS
  g = 0
  c = 1
  INPUT "Enter how many numbers you want to find"; t
  WHILE c <= t
      INPUT "Enter the numbers"; n
      IF n > g THEN
          g = n
      END IF
      c = c + 1
  WEND
  PRINT "The greatest number among supplied numbers is "; g
  END

To Add The N Numbers Entered

CLS
INPUT "How many numbers do you want to add"; n
FOR i = 1 TO n
    INPUT "Enter the number you want to add"; x
    s = s + x
NEXT i
PRINT "The sum of the numbers you entered is"; s
END

To Find The Sum From 1 to N (Qbasic Code)

To Find The Sum From 1 to N (Qbasic Code)

• CLS
  INPUT "Enter the number upto which you want to add"; n
  s = 0
  FOR i = 1 TO n
      s = s + i
  NEXT i
  PRINT "The sum is "; s
  END

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 Next Method (Using DO WHILE ... LOOP)

•  CLS
  INPUT "Enter the number upto which you want to add"; n
  s = 0
  c = 1
  DO WHILE c <= n
      s = s + c
      c = c + 1
  LOOP
  PRINT "The sum is "; s
  END

To Update The Marks

• A sequential data file "std.dat" contains name, class and roll no., marks of english and science of a student. Make a program to update marks in english and science. (assuming only one record)
• CLS
  OPEN "std.dat" FOR INPUT AS #1
  OPEN "temp.dat" FOR OUTPUT AS #2
  INPUT #1, n$, cl, r
  INPUT "Enter marks in english:"; en
  INPUT "Enter marks in science:"; sc
  WRITE #2, n$, cl, r, en, sc
  CLOSE #1, #2
  KILL "std.dat"
  NAME "temp.dat" AS "std.dat"
  END

To Find The Certain Record In A Data File

• A sequential data file "std.dat" contains name, class and roll of a student. Make a program to display certain records in the file according to the roll no. supplied.
• CLS
  OPEN "std.dat" FOR INPUT AS #1
  INPUT "Enter the roll number of the required student:"; rn
  PRINT "Name", "Class", "Roll"
  DO WHILE NOT EOF(1)
      INPUT #1, n$, cl, r
      IF r = rn THEN
          PRINT n$, cl, r
      ELSE
      END IF
  LOOP
  CLOSE #1

To Display All Records In The File.

• File contains name, class and roll no., marks of english and science of some students.

CLS
OPEN "std.dat" FOR INPUT AS #1
PRINT "Name", "Class", "Roll", "English", "Science"
DO WHILE NOT EOF(1)
    INPUT #1, n$, cl, r, en, sc
    PRINT n$, cl, r, en, sc
LOOP
CLOSE #1
END

What is file mode? What are the modes of files in Qbasic?

The purpose of opening data file is called file mode.

• The different modes of opening sequential data files are:
• OUTPUT or "O" mode: 
• OUTPUT mode is used to create a new sequential data file. If the data file is already exists, it will erase all previous contents and new contents are added from the beginning of the file. 
• Example of OUTPUT mode: (Click)
• APPEND or "A" mode:
• APPEND mode is used to add more records in the existing sequential data file. It will add data from the end of the file.
• Example of APPEND mode: (Click)
• INPUT or "I" mode: 
• INPUT mode is used to open data file for reading data from existing file.
• Example of INPUT mode: (Click) 

PRINT# Statement

• The PRINT# statement is used to store one or more data items to the specified file using either OUTPUT or APPEND mode.

• Syntax:
• PRINT # file number, data 1, data 2
• Eg:
• WRITE #1, n$, roll

To Add More Records In File

File contains name, class and roll no., marks of english and science of a student.

 
Normal Program
CLS
OPEN "std.dat" FOR APPEND AS #1
INPUT "Enter name:"; n$
INPUT "Enter class:"; cl
INPUT "Enter roll:"; r
INPUT "Enter marks in english:"; en
INPUT "Enter marks in science:"; sc
WRITE #1, n$, cl, r, en, sc
CLOSE #1
END

To Display Records From File "std.dat"

• File contains name, class and roll no., marks of english and science of a student.
• CLS
  OPEN "std.dat" FOR INPUT AS #1
  INPUT #1, n$, cl, r, en, sc
  PRINT "Name: "; n$
  PRINT "Class: "; cl
  PRINT "Roll:"; r
  PRINT "Marks In English:"; en
  PRINT "Marks In Science:"; sc
  CLOSE #1
  END

To Input Data In A File "std.dat"

• A program to input the name, class and roll no, marks of english and science of a student and store in a sequential file "std.dat".
• CLS
  OPEN "std.dat" FOR OUTPUT AS #1
  INPUT "Enter name"; n$
  INPUT "Enter class"; cl
  INPUT "Enter roll"; r
  INPUT "Enter marks in english"; en
  INPUT "Enter marks in science"; sc
  WRITE #1, n$, cl, r, en, sc
  END

To print the fibonacci series

Using FOR ..... NEXT

CLS
a = 1
b = 1
PRINT a;
PRINT b;
FOR i = 1 TO 8
    c = a + b
    PRINT c;
    a = b
    b = c
NEXT i
END


Using WHILE ..... WEND

•  CLS
  i = 1
  a = 1
  b = 1
  PRINT a
  PRINT b
  WHILE i <= 10
      c = a + b
      PRINT c
      a = b
      b = c
      i = i + 1
  WEND
  END

To Display Natural Numbers From 1 to 10 (Qbasic Code)

To Display Natural Numbers From 1 to 10 (Qbasic Code)
Using FOR ...... NEXT

• CLS
  FOR i = 1 TO 10 STEP 1
      PRINT i
  NEXT i
  END

Using WHILE .....  WEND

•  CLS
  c = 1
  WHILE c <= 10
      PRINT c
      c = c + 1
  WEND
  END

Using DO WHILE ..... LOOP

• CLS
  c = 1
  DO WHILE c <= 10
      PRINT c
      c = c + 1
  LOOP
  END

• See also
• Using SUB procedure
• Using FUNCTION procedure

To check entered character is vowel or consonant.

Normal Program:
CLS
INPUT "Enter any one character:"; a$
IF a$ = "a" OR a$ = "e" OR a$ = "i" OR a$ = "o" OR a$ = "u" THEN
    PRINT "The entered character is vowel";
ELSE
    PRINT "The entered character is consonant";
END IF
END

What is input mask?

• It is a field property that allows to have control over data entry by defining validation for each character.

• A field property which determines what type of data can be entered in the field as well as where data can be entered and how many characters are allowed is regarded as input mask.

What is formatting table?

• Changing the default appearance of a table either by changing the height row or width of column, changing the fonts, colour etc is known as formatting table.

What is fragmentation?

As the uses of computers going on, there will be the process of adding new files, removing or deleting files occurs frequently. And this will cause some files to be unmanaged, i.e. the parts of some files may be scattered over different locations of the disk. These scattered parts of the same file over different location on the disk is said as fragmentation.

• Fragmentation causes the slow access of disk, files and degrades the overall performance of the disk.

What is Scandisk?

The process of maintaining the disk files and folders using a kind of utility software by checking files, folders, bad sectors, lost clusters, lost chains and other errors of the specific disk is named as scandisk.

What is Internet Telephony?

Internet Telephony is a system that allows the users to make telephone call or voice call from one location to another location using the service of internet.

• As advancement in technology, it is not only the way to use telephone to have communication, we can have further cheap and reliable way of communication than telephone. And internet telephony is one of them.

What is ISP?

ISP is Internet Service Provider. It is an organization that provides the services of internet to the users. Connection to the internet is possible only through ISP. 

What is Intranet and Extranet?

• Intranet: Intranet is a computer network maintained privately and that can be only accessed by the authorized persons of the organization that own the network. 
• An intranet is a private network that can only be accessed by authorized users. The prefix "intra" means "internal" and therefore implies an intranet is designed for internal communications. "Inter" (as in Internet) means "between" or "among." 
• Since there is only one Internet, the word "Internet" is capitalized. Because many intranets exist around the world, the word "intranet" is lowercase.
• An intranet is based on the protocol TCP/IP.
• Features of intranet:
1. It is closely related to the internet.
2. It runs on private networks within a company and among its branch offices.
3. It serves as a powerful tool for communication withing an organization. 

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• Extranet: Extranet is a private network that uses the internet protocols network connectivity.  It is a kind of computer network that allows the outside users to access the Intranet of organization. Extranet can be viewed as part of a company's intranet that is extended to users outside the company, usually via the internet.
• The term Extranet is linked with Intranet. This network system is basically used for business to business (B2B) purposes. This system basically allows the outside users of an organization, like partners, suppliers, vendors and other stakeholders to remain in touch with the activities of organization. 

Remove Skype History

 

When multiple users runs the same computer for Skype communication, there will be stored the login name of the users. Want to remove them?

• How to remove user names in Skype history?
• I want to delete my login history.
• How to delete my account history?
• How to remove user names from the log in screen?
• How to remove usernames in the sing-in window?

When someone login to skype, it stores the username on its skype name text box. If multiple users do login on the same PC, then all the login data/history will be saved on it. So when other users try to login, all the login data is displayed. But there is no handy tool to remove the history. This can be an easy way to remove the history.

• Here is the trick.

1. Click on the start button.
2. Click on run. (If run command is not on the list, hold on the window key and press r)
3. Type this '%appdata%\skype' on the run box.
4. Click ok.
5. A window will appear.
6. Here, delete the folder with the name you don't want to appear on the history.
7. Open skype and check. (the history will be removed).

How To Hide/Show Ribbon Bar In MS-Excel/Word/Access/Powerpoint?

The Ribbon as a part of the Microsoft Office Fluent user interface, is designed to help user quickly find the commands that they need to complete a task. Commands are organized in logical groups that are collected together under tabs. Each tab relates to a type of activity, such as writing or laying out a page. To reduce screen clutter, some tabs are shown only when they are needed. When the Ribbon is minimized, only the tabs are visible.

There is no way to delete or replace the Ribbon with the toolbars and menus from the earlier versions of Microsoft Office. However, user can minimize the Ribbon to make more space available on your screen.

How to Hide the ribbon?

To minimize the Ribbon, simply right click on any place of the Ribbon. A menu pop-up and check (click) the minimize the ribbon. The ribbon will be minimized.

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How to Restore/Show the ribbon?

Now, if needs to restore or show the ribbon, simply right click on the menu bar or home button and click the minimize the ribbon to remove the check mark. The ribbon will be visible.

What is EPUB File and How to Open It?

EPUB is short for Electronic PUBlication. It is a free and open e-book standard by the International Digital Publishing Forum (IDPF). Files have the extension .epub.

• A file with the EPUB file extension is an Open Publication Structure eBook file.

How To Open an EPub File?

• An EPUB file can be opened using some of the following methods.

There are many popular viewers for EPUB such as,

• FBReader
• Adobe Digital Editions (Download)
• Calibre (Download)
• Aldiko
• Booki.sh
• BlueFire Reader
• Books
• MegaReader

It can also be opened inside the Firefox using the EPUBReader, a free add-on that lets to read the contents of any ePub book.

Determine The System Running (32 bit OS or 64 bit OS)

32 bit OS and 64 bit OS are two categories of operating software in Windows OS. So, there are also different versions of software (32 bit and 64 bit) for the 32 bit and 64 bit OS.

So, it should be determined which OS is running on the system before installing the software.

Check the running OS (Click Here)

Boot Windows From USB

Booting a computer from CD/DVD is sometime problematic. There may be the several problems like CD scratches, CD drive problem etc. So, it may be good choice to use USB boot option to boot the computer.

• To boot from USB, some steps to be followed before making the USB bootable.

1. Have the ISO image file or problem free CD of windows.
2. Have a USB drive of minimum of the capacity that can store the entire boot files.
3. After these, have the software to prepare bootable USB. If don't have can be downloaded. (Click here to download)
4. Install the software.
5. Insert the USB disk on the USB port.
6. Run the software.
7. On the first step (i.e. Choose ISO file), Click Browse to locate the ISO file.
8. After locating the ISO file, Click Next.
9. On step Two (i.e., Choose Media Type.), select USB device.
10. On step Three (i.e, Insert USB device), choose the appropriate USB device.
11. Finally click Begin Copying.
12. It will take several minutes to copy the files (depending on the system).
13. After completing the copy, click start over.
14. Finally the USB is ready as bootable disk.
15. Now configure the BIOS to boot from the USB.

For Windows XP users
The following applications must be installed prior to installing the tool:

•     Microsoft .NET Framework 2.0 must be installed. It can be downloaded.  
• (Click here to download)
•     Microsoft Image Mastering API v2 must be installed. It can be downloaded. 
• (Click here to download)

Check Your Current Location

 

While surfing the internet one may want to know the location from where he is surfing, And what is the IP address. Visitors/Internet Users may need to know their IP address for many reasons including gaming, tech support, remote desktop connection, proxy detection, anonymity, to see if their address has changed, etc. This helps to know him further information regarding the geolocations, etc.

• Some free internet sites provides free services to know these information.

Currency Converter

Need to know one currency value with other currency. Here is a quick solution. Just type the amount you want to know and select the proper currencies in the boxes. You will get the instant result.

Currency Calculator

International Call Dialing Codes

International Dialing Codes are the codes one have to dial before dialing the contact number to someone out of the country. If the codes are not correct, the call can not be success. 

International Dialing Codes

Keyboard ShortKeys Combinations

General keyboard shortcuts

1. CTRL+ C - Copy
2. CTRL+X - Cut
3. CTRL+V - Paste
4. CTRL+Z - Undo
5. CTRL+B - Make text bold
6. CTRL+I - Make text Italic
7. CTRL+U - Make text underlined
8.  DELETE - Delete
9. SHIFT+DELETE - Delete the selected item permanently without placing the item in the Recycle Bin
10. CTRL while dragging an item - Copy the selected item
11. CTRL+SHIFT while dragging an item - Create a shortcut to the selected item
12. F2 key - Rename the selected item
13. CTRL+RIGHT ARROW - Move the insertion point to the beginning of the next word
14. CTRL+LEFT ARROW - Move the insertion point to the beginning of the previous word
15. CTRL+DOWN ARROW - Move the insertion point to the beginning of the next paragraph
16. CTRL+UP ARROW - Move the insertion point to the beginning of the previous paragraph
17. CTRL+SHIFT with any of the arrow keys - Highlight a block of text
18. SHIFT with any of the arrow keys - Select more than one item in a window or on the desktop, or select text in a document
19. CTRL+A - Select all
20. F3 key - Search for a file or a folder
21. ALT+ENTER - View the properties for the selected item
22. ALT+F4 - Close the active item, or quit the active program
23. ALT+ENTER - Display the properties of the selected object
24. ALT+SPACEBAR - Open the shortcut menu for the active window
25. CTRL+F4 - Close the active document in programs that enable you to have multiple documents open simultaneously
26. ALT+TAB - Switch between the open items
27. ALT+ESC - Cycle through items in the order that they had been opened
28. F6 key - Cycle through the screen elements in a window or on the desktop
29. F4 key - Display the Address bar list in My Computer or Windows Explorer
30. SHIFT+F10 - Display the shortcut menu for the selected item
31. ALT+SPACEBAR - Display the System menu for the active window
32. CTRL+ESC - Display the Start menu
33. ALT+Underlined letter in a menu name - Display the corresponding menu
34. Underlined letter in a command name on an open menu - Perform the corresponding command
35. F10 key - Activate the menu bar in the active program
36. RIGHT ARROW - Open the next menu to the right, or open a submenu
37. LEFT ARROW - Open the next menu to the left, or close a submenu
38. F5 key - Update the active window
39. BACKSPACE -View the folder one level up in My Computer or Windows Explorer
40. ESC - Cancel the current task
41. SHIFT when you insert a CD-ROM into the CD-ROM drive - Prevent the CD-ROM from automatically playing
42. CTRL+SHIFT+ESC - Open Task Manager

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Dialog Box Keyboard Shortcuts

1. CTRL+TAB - Move forward through the tabs
2. CTRL+SHIFT+TAB - Move backward through the tabs
3. TAB - Move forward through the options
4. SHIFT+TAB - Move backward through the options
5. ALT+Underlined letter - Perform the corresponding command or select the corresponding option
6. ENTER - Perform the command for the active option or button
7. SPACEBAR - Select or clear the check box if the active option is a check box
8. Arrow keys - Select a button if the active option is a group of option buttons
9. F1 key - Display Help
10. F4 key - Display the items in the active list
11. F7 - Spelling and Grammar
12. BACKSPACE - Open a folder one level up if a folder is selected in the Save As or Open dialog box

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Microsoft natural keyboard shortcuts

1. Windows Logo - Display or hide the Start menu
2. Windows Logo+BREAK - Display the System Properties dialog box
3. Windows Logo+D - Display the desktop
4. Windows Logo+M - Minimize all of the windows
5. Windows Logo+SHIFT+M - Restore the minimized windows
6. Windows Logo+E - Open My Computer
7. Windows Logo+F - Search for a file or a folder
8. CTRL+Windows Logo+F - Search for computers
9. Windows Logo+F1 - Display Windows Help
10. Windows Logo+ L - Lock the keyboard
11. Windows Logo+R - Open the Run dialog box
12. Windows Logo+U - Open Utility Manager

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Windows Explorer keyboard shortcuts

1. END - Display the bottom of the active window
2. HOME - Display the top of the active window
3. NUM LOCK+Asterisk sign (*) - Display all of the subfolders that are under the selected folder
4. NUM LOCK+Plus sign (+) - Display the contents of the selected folder
5. NUM LOCK+Minus sign (-) - Collapse the selected folder
6. LEFT ARROW - Collapse the current selection if it is expanded, or select the parent folder
7. RIGHT ARROW - Display the current selection if it is collapsed, or select the first subfolder
8.  Shortcut keys for Character Map
9.  After double-click a character on the grid of characters, you can move through the grid by using the keyboard shortcuts:
10. RIGHT ARROW - Move to the right or to the beginning of the next line
11. LEFT ARROW - Move to the left or to the end of the previous line
12. UP ARROW - Move up one row
13. DOWN ARROW - Move down one row
14. PAGE UP - Move up one screen at a time
15. PAGE DOWN - Move down one screen at a time
16. HOME - Move to the beginning of the line
17. END - Move to the end of the line
18. CTRL+HOME - Move to the first character
19. CTRL+END - Move to the last character
20. SPACEBAR -Switch between Enlarged and Normal mode when a character is selected

Full Form Starting From Z

1. ZB - Zettabyte 

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Click the starting letter 
..A.. ..B.. ..C.. ..D.. ..E.. ..F.. ..G.. ..H.. ..I.. ..J.. ..K.. ..L.. ..M.. ..N.. ..O.. ..P.. ..Q.. ..R.. ..S.. ..T.. ..U.. ..V.. ..W.. ..X.. ..Y.. ..Z..

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Full Form Starting From Y

1. YAHOO - Yet Another Hierarchical Officious Oracle
2. YB - Yottabyte

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Click the starting letter 
..A.. ..B.. ..C.. ..D.. ..E.. ..F.. ..G.. ..H.. ..I.. ..J.. ..K.. ..L.. ..M.. ..N.. ..O.. ..P.. ..Q.. ..R.. ..S.. ..T.. ..U.. ..V.. ..W.. ..X.. ..Y.. ..Z..

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Full Form Starting From X

1. XMS - Extended Memory System 
2. XP - EXPerience
3. XT - Extended Technology
4. XTP - eXpress Transfer Protocol 

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Click the starting letter 
..A.. ..B.. ..C.. ..D.. ..E.. ..F.. ..G.. ..H.. ..I.. ..J.. ..K.. ..L.. ..M.. ..N.. ..O.. ..P.. ..Q.. ..R.. ..S.. ..T.. ..U.. ..V.. ..W.. ..X.. ..Y.. ..Z..

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Full Form Starting From W

1. W3C - World Wide Web Consortium
2. WAN - Wide Area Network
3. WAIS - Wide Area Information Server
4. Wi-Fi - Wireless Fidelity 
5. Wi-Max - Worldwide Interoperability for Microwave Access
6. WIMP - Window, Icon, Menu, Pointing device
7. WLAN - Wireless Wide Area Network
8. WORM - Write Once Read Many
9. WWW - World Wide Web

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Click the starting letter 
..A.. ..B.. ..C.. ..D.. ..E.. ..F.. ..G.. ..H.. ..I.. ..J.. ..K.. ..L.. ..M.. ..N.. ..O.. ..P.. ..Q.. ..R.. ..S.. ..T.. ..U.. ..V.. ..W.. ..X.. ..Y.. ..Z..

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Full Form Starting From V

1. VAN - Value Added Network
2. VAN - Virtual Area Network
3. VCD - Video Compact Disc
4. VDT - Video Display Terminal
5. VDU - Video Display Unit
6. VGA - Video Graphics Adapter
7. VHF - Very High Frequency
8. VHSIC - Very Large Speed Integration Circuit
9. VIRUS - Vital Information Resource Under Siege
10. VLSI - Very Large Scale Integration
11. VOIP - Voice Over Internet Protocol
12. VPN - Virtual Private Network (View) 
13. VR - Virtual Reality 
14. VRML - Virtual Reality Modeling Language (View)
15. VSAT - Very Small Aperture Terminals

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Click the starting letter 
..A.. ..B.. ..C.. ..D.. ..E.. ..F.. ..G.. ..H.. ..I.. ..J.. ..K.. ..L.. ..M.. ..N.. ..O.. ..P.. ..Q.. ..R.. ..S.. ..T.. ..U.. ..V.. ..W.. ..X.. ..Y.. ..Z..

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Full Form Starting From U

1. UCITA - Uniform Computer Information Transactions Act
2. UDF - User Defined Function
3. UDP - User Datagram Protocol
4. UHF - Ultra High Frequency
5. ULSI - Ultra Large Scale Integration
6. UMB - Upper Memory Block
7. UNCITRAL - United Nations Commission on International Trade Law 
8. URL - Uniform Resource Locator
9. UNIVAC - Universal Automatic Computer
10. UPS - Uninterruptible Power Supply
11. URL - Uniform Resource Locator
12. USB - Universal Serial Bus
13. UTP - Unshielded Twisted Pair
14. UNIX - UNiplexed Information Computing System (UNICS) (later known as UNIX) 

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Click the starting letter 
..A.. ..B.. ..C.. ..D.. ..E.. ..F.. ..G.. ..H.. ..I.. ..J.. ..K.. ..L.. ..M.. ..N.. ..O.. ..P.. ..Q.. ..R.. ..S.. ..T.. ..U.. ..V.. ..W.. ..X.. ..Y.. ..Z..

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Full Form Starting From T

1. TB - Terabyte
2. TCP/IP - Transmission Control Protocol/Internet Protocol
3. TIFF - Tagged Image File
4. TLD - Top Level Domain
5. TPC - Twisted Pair Cable
6. TPF - Transaction Processing Facility (View)
7. Transistor - Transfer Resister
8. Telnet - Terminal Emulation

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Click the starting letter 
..A.. ..B.. ..C.. ..D.. ..E.. ..F.. ..G.. ..H.. ..I.. ..J.. ..K.. ..L.. ..M.. ..N.. ..O.. ..P.. ..Q.. ..R.. ..S.. ..T.. ..U.. ..V.. ..W.. ..X.. ..Y.. ..Z..

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Full Form Starting From S

1. SC - Subscriber Connector or Standard Connector or Square Connector (View)
2. SCP - System Code Processor
3. SCSI - Small Computer System Interface
4. SDLC - Software Development Life Cycle
5. SDRAM - Synchronous/Static Dynamic Random Access Memory
6. SIM - Subscriber Identity Module or Subscriber Identification Module
7. SIMM - Single In-line Memory Module
8. SMA - Screw Mounted Adapter
9. SMPS - Switch Mode Power Supply
10. SMTP - Simple Mail Transfer Protocol 
11. SNA - Systems Network Architecture
12. SNOBOL - StriNg Oriented symBOlic Language
13. SPX - Sequenced Packet Exchange
14. SQL - Structured Query Language
15. SRAM - Static RAM
16. SSDD - Single Sided Double Density
17. SSHD - Single Sided High Density
18. SSI - Single Scale Integration
19. SSSD - Single Sided Single Density 
20. ST - Straight Tip (View)
21. STD - Standard Trunk Dialing
22. STP - Shielded Twisted Pair
23. SVGA - Super Video Graphics Array / Adapter 

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Click the starting letter 
..A.. ..B.. ..C.. ..D.. ..E.. ..F.. ..G.. ..H.. ..I.. ..J.. ..K.. ..L.. ..M.. ..N.. ..O.. ..P.. ..Q.. ..R.. ..S.. ..T.. ..U.. ..V.. ..W.. ..X.. ..Y.. ..Z..

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Full Form Starting From R

1. RAM - Random Access Memory 
2. RARP - Reverse Address Resolution Protocol
3. RDBMS - Relational Database Management System
4. RF - Radio Frequency
5. RJ-45 - Registered Jack-45
6. RMM - Read Mostly Memory
7. ROM - Read Only Memory
8. RPG - Report Program Generator
9. RPM - Revolution Per Minute
10. RTOS - Real Time Operating System

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Full Form Starting From Q

1. QBASIC - Quick Beginners All Purpose Symbolic Instruction Code
2. QBE - Query By Example
3. QEL - Query Language

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Full Form Starting From P

1. P2P - Peer to Peer
2. PB - Petabyte
3. PC - Personal Computer
4. PCO - Public Call Office
5. PCB - Printed Circuit Board
6. PCI - Peripheral Connection Interface
7. PDA - Personal Digital Assistant
8. PDF - Portable Document Format
9. PDP - Programmed Data Processor
10. PILOT - Programming Inquiring Learning or Teaching
11. Pixel - Picture Element
12. PIN - Personal Identification Number
13. PKI - Public Key Infrastructure 
14. PL-1 - Programming Language 1
15. PM - Primary Memory
16. POB - Post Office Box
17. POP - Post Office Protocol
18. POS - Point Of Sale
19. POST - Power On Self Test
20. POTS - Plain Old Telephone Service
21. PROLOG - Programming Logic
22. PROM - Programmable Read Only Memory
23. PS/2 - Personal System 2
24. PSRAM - Pseudo Static Random Access Memory
25. PSTN - Public Switched Telephone Network
26. PUK - Personal Unblocking Code / Personal Unblocking Key

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Full Form Starting From O

1. OCP - Order Code Processor
2. OCR - Optical Character Reader 
3. OLE - Object Linking and Embedding (View)
4. OMR - Optical Mark Reader
5. OS - Operating System / Software
6. OSI -  Open Systems Interconnection (OSI) model (View)
7. OTP - One Time Programmable ROM 

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Full Form Starting From N

1. NATO - North Atlantic Treaty Organization
2. NAV - Norton AntiVirus  
3. NCSP - Netscreen Certified Security Professional
4. NDD - Norton Disk Doctor
5. NetBEUI - NetBIOS Extended User Interface
6. NetBIOS - Network Basic Input Output System
7. NIC - Network Interface Card
8. NITC - National Information Technology Centre
9. NITCC - National Information Technology Coordination Committee
10. NITDC - National Information Technology Development Committee
11. NNTP - Network News Transfer Protocol
12. NOS - Network Operating System 
13. NSF - National Science Foundation
14. NSFNET - National Science Foundation Network 

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Full Form Starting From M

1. MAC - Media Access Control
2. MAN - Metropolitan Area Network
3. MB - Megabytes
4. MBPS - Mega Byte Per Second
5. MBR - Master Boot Record 
6. MCA - Master of Computer Application (View)
7. MCGA - Multi Colored Graphics Adapter
8. MDA - Monochrome Display Array
9. MF2DD - Micro Floppy Disk Double Sided Double Density
10. MF2HD - Micro Floppy Disk Double Sided High Density
11. MHZ - Megahertz
12. MICR - Magnetic Ink Character Recognition
13. MIDI - Musical Instrument Digital Interface (View)
14. MIPS - Millions of Instruction Per Second
15. MODEM - Modulator and Demodulator
16. MOS - Metal Oxide Semiconductor
17. MOST -  Magneto-optical Storage Technology
18. MPEG - Motion Picture Expert Group 
19. MP3 - MPEG Audio Layer 3 (View)
20. MSAU -  Multi Station Access Unit.
21. MS DOS - Microsoft Disk Operation System
22. MS Access - Microsoft Access
23. MU - Memory Unit
24. MUK - Multimedia Utility Kits 

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Full Form Starting From L

1. LAN - Local Area Network
2. LASER - Light Amplification by Stimulated Emission of Radiation
3. LCD - Liquid Crystal Display
4. LCOS - Liquid Crystal On Silicon
5. LHN - Long Haul Network
6. LISP - List Processing
7. LIST - List Processor
8. LSI - Large Scale Integration
9. LSIC - Large Scale Integration Circuit

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Full Form Starting From K

1. KB - Kilobyte
2. KBPS - Kilo Bytes Per Second
3. Kbps - Kilo bits per second 
4. KHz - Kilohertz

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Full Form Starting From J

1. JPEG - Joint Photographic Experts Group
2. JSP - Java Server Pages

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Full Form Starting From I

1. IAB - Internet Architecture Board 
2. IAS - Internet Authentication Server
3. IBM PC - International Business Machine Personal Computer
4. IBM - International Business Machine
5. IBT - Internet Based Training
6. IC - Integrated Circuit
7. ICL - International Computers Limited
8. ICT - Information Communication Technology
9. IDPF - International Digital Publishing Forum 
10. IESG - Internet Engineering Steering Board
11. IEEE - Institute of Electronic and Electrical Engineering 
12. IETF - Internet Engineering Task Force
13. IIS - Internet Information Server
14. IKBS - Intelligent Knowledge Based System
15. INIC - Internet Network Information Centre
16. Internet - International Network (Netscape)
17. IO - Input / Output
18. IP - Internet Protocol
19. IPO - Input Process Output
20. IPOD - Intelligent Portable Ocular Device
21. IPX - Internetwork Packed Exchange
22. IPX/SPX - Internetwork Packet Exchange / Sequence Packet Exchange
23. IRC - Internet Relay Chat
24. IRTB - Industrial Real Time Basic
25. ISA - Industry Standard Architecture
26. ISD - International Subscriber Dialing
27. ISDN - Integrated Services Digital Network
28. ISO -  International Organization for Standardization (View)
29. ISOC - Internet Society
30. ISP - Internet Service Provider
31. IT - Information Technology
32. ITPDC - Information Technology Park Development
33. ITPF - Information Technology Professional Forum
34. IXP or IX  - Internet eXchange Point. (View)

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Full Form Starting From H

1. HDD - Hard Disk Drive 
2. HLCIT - High Level Commission for Information Technology
3. HONS - Himalayan Online Network Service
4. HTTP - Hyper Text Transfer Protocol
5. HTML - Hyper Text Markup Language

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Full Form Starting From G

1. GaAs - Gallium Arsenide
2. GB - Gigabytes
3. GBPS - Giga Byte Per Second
4. GHz - Gigahertz 
5. GIGO - Garbage In Garbage Out
6. GIF - Graphics Interchange Format 
7. GOOGLE - Global Organization Of Oriented Group Language Of Earth 
8. GPL - General Public License
9. GPRS - General Pocket Radio Service
10. GSM - Global System for Mobile Communication
11. GUI - Graphical User Interface

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