| Sr. No. | Short – Form | Long Form |
| | AC | Alternating Current |
| | ACPI | Advanced Configuration And Power Interface |
| | AGP | Accelerated Graphics Port |
| | ALU | Arithmetic &Logical Unit |
| | AOL | America Online |
| | API | Application Programming Interface |
| | ARPANET | Advanced Research Projects Agency Network |
| | ASCII | American Standard Code for Information Interchange |
| | ASP | Active Server Pages Or Application Service Provider |
| | ATA | Advanced Technology Attachment |
| | ATM | Automated Teller Machine Or Asynchronous Transfer Mode |
| | B2B | Business-To–Business |
| | B2C | Business-To–Consumer |
| | BCD | Binary-Coded Decimal |
| | BIOS | Basic Input Output System |
| | Bps | bits per second |
| | C2C | Consumer-To– Consumer |
| | CAD | Computer-Aided Design |
| | CAM | Computer-Aided Manufacturing |
| | CD | Compact Disc |
| | CDMA | Code Division Multiple Access |
| | CD-R | Compact Disc-Recordable |
| | CD-ROM | Compact Disc – Read-Only Memory |
| | CD-RW | Compact Disc –Rewritable |
| | CHAP | Challenge Handshake Authentication Protocol |
| | CISC | Complex Instruction Set Computing |
| | CMOS | Complementary Metal Oxide Semiconductor |
| | CMYK | Cyan, Magenta, Yellow, And Black(4 Colour Channel ) |
| | CPU | Central Processing Unit |
| | CRT | Cathode Ray Tube |
| | CU | Control Unit |
| | CUI | Character User Interface |
| | DAP | Directory Access Protocol |
| | DBMS | Database Management System |
| | DC | Direct Current |
| | DDR-RAM | Double Data Rate – Random Access Memory |
| | DIMM | Dual Inline Memory Module |
| | DIMM | Dual Inline Memory Module |
| | DIP | Dual Inline Package |
| | DMA | Direct Memory Access |
| | DNS | Domain Name System/Services |
| | DOS | Disk Operating System |
| | DPI | Dot Per Inches |
| | DSL | Digital Subscriber Line |
| | DTP | DeskTop Publication |
| | DVD | Digital Versatile Disc Or Digital Video Disc |
| | DVI | Digital Video Interface |
| | EBCDIC | Extended Binary Coded Decimal Interchange Code |
| | E-Book | Electronic Book |
| | EEPROM | Electrically Erasable Programmable Read Only Memory |
| | E-Mail | Electronic Mail |
| | ENIAC | Electronic Numerical Integrator and Calculator |
| | EPROM | Electrically Programmable Read-Only Memory |
| | FAT | File Allocation Table |
| | FM | Frequency Modulation |
| | FTP | File Transfer Protocol |
| | GB | Gigabyte (10243) |
| | GIF | Graphics Interchange Format |
| | GPL | General Public License |
| | GPS | Global Positioning System |
| | GSM | Global System for Mobile Communications |
| | GUI | Graphical User Interface |
| | HDD | Hard Disk Drive |
| | HDTV | High-Definition TeleVision |
| | HTML | Hypertext Markup Language |
| | HTTP | Hypertext Transfer Protocol |
| | Hz/MHz/GHz | Hertz / Megahertz / Gigahertz |
| | I/O | Input &Output |
| | IBM | International Business Machine |
| | IDE | Integrated Drive Electronics |
| | IM | Instant Messaging |
| | IP | Internet Protocol or Internet Provider |
| | IRC | Internet Relay Chat |
| | IRQ | Interrupt Request |
| | ISDN | Integrated Services Digital Network |
| | ISO | International Organization for Standardization |
| | ISP | Internet Service Provider |
| | IT | Information Technology |
| | IVR | Interactive Voice Response |
| | JPEG / JPG | Joint Photographic Experts Group |
| | KB | Kilobyte(A Unit Of Information Storage Equal To 1,024 Bytes.) |
| | Kbps/Mbps | Kilobits Per Second / Megabits Per Second |
| | LAN | Local Area Networking |
| | LCD | Liquid Crystal Display |
| | LED | Light-Emitting Diode |
| | LSI | Large-Scale Integration |
| | MAN | Metropolitan Area Networking |
| | MBR | Master Boot Record |
| | MICR | Magnetic Ink Character Recognition |
| | MIDI | Musical Instrument Digital Interface |
| | MIPS | Millions Of Instructions Per Second |
| | MODEM | Modulator Demodulator |
| | MPEG | Motion Pictures Expert Group |
| | MSI | Medium-Scale Integration |
| | MU | Memory Unit |
| | NIC | Network Interface Card or Network Information Center. |
| | NIS | Network Interface Card |
| | NOS | Network Operating System |
| | NTFS | New Technology File System |
| | NTSC | National Television System Committee. |
| | OCR | Optical Character Recognition |
| | ODBC | Open Database Connectivity |
| | OLE | Object Linking And Embedding |
| | OMR | Optical Mark Recognition |
| | OS | Operating System |
| | PAP | Printer Access Protocol |
| | PC | Personal Computer |
| | PCB | Printed Circuit Board |
| | PCI | Peripheral Component Interconnect |
| | PDA | Personal Digital Assistant |
| | PDF | Portable Document Format |
| | PDF | Portable Document Format |
| | PIM | Personal Information Manager |
| | PIN | Personal Identification Number |
| | PnP | Plug And Play |
| | POP | Post Office Protocol |
| | POST | Power On Self-Test |
| | PPP | Point-to-Point Protocol |
| | PROM | Programmable Read Only Memory |
| | RAID | Redundant Array Of Independent Disks |
| | RAM | Random Access Memory |
| | RGB | Red, Green, Blue (3 Colour Channel) |
| | RISC | Reduced Instruction Set of Computer |
| | ROM | Read Only Memory |
| | S.M.A.R.T. | Self-Monitoring Analysis And Reporting Technology |
| | SATA | Serial Advanced Technology Attachment |
| | SCSI | Small Computer System Interface |
| | SD-RAM | Static Dynamic – Random Access Memory |
| | SIMM | Single Inline Memory Module |
| | SIMM | Single Inline Memory Module |
| | SMPS | Switch Mode Power Supply |
| | SMS | Short Message Service |
| | SMTP | Simple Mail Transfer Protocol |
| | SQL | Structured Query Language |
| | SSD | Solid-State Disk |
| | SSI | Small-Scale Integration |
| | SVGA | Super Video Graphics Array |
| | SXGA | Super Extended Graphics Array |
| | TB | Terabyte (10244) |
| | TCP | Transmission Control Protocol |
| | TFT | Thin Film Transistor |
| | ULSI | Ultra-Large-Scale Integration |
| | UPC | Universal Product Code |
| | UPS | Uninterruptible Power Supplies |
| | URL | Uniform Resource Locator |
| | USB | Universal Serial Bus |
| | UXGA | Ultra Extended Graphics Array |
| | VDU | Video Display Unit. |
| | VGA | Video Graphics Array or Video Graphics Adapter |
| | VLSI | Very-Large-Scale Integration |
| | VPN | Virtual Private Network |
| | VRML | Virtual Reality Modeling Language |
| | WAN | Wide Area Networking |
| | WORM | Write-Once, Read Many |
| | WWW | World Wide Web |
| | XGA | Extended Graphics Array |
| | XML | Extensible Markup Language |
