| A/D | Analog to Digital |
| ADSL | Asymmetric Digital Subscriber Line |
| AGP | Accelerated Graphics Port |
| AI | Artificial Intelligence |
| ALGOL | Algorithmic Language |
| ALU | Arithmetic Logic Unit |
| AM | Amplitude Modulation |
| AMD | Advanced Micro Devices |
| ANSI | American National Standards Institute |
| ARPANET | Advanced Research Project Agency Network |
| ASCII | American Standard Code for Information Interchange |
| ATM | Asynchronous Transfer Mode / Automatic Teller Machine |
| B2B | Business to Business |
| B2C | Business to Consumer |
| BARC | Bhabha Atomic Research Center |
| BASIC | Beginners' All-Purpose Symbolic Instruction Code |
| BCc | Blind Carbon Copy |
| BCD | Binary Coded Decimal |
| BIOS | Basic Input Output System |
| BCR | Bar Code Reader |
| BMP | Bit Map |
| BPI | Bytes Per Inch |
| BPS | Bits Per Second |
| CAD | Computer Aided Design |
| CAL | Computer Aided Learning |
| CAM | Computer Aided Manufacturing |
| CCTLD | Country Code Top Level Domain |
| CD | Compact Disk |
| C-DAC | Centre for Development of Advanced Computing |
| CDMA | Code Division Multiple Access |
| C-DOT | Centre for Development of Telematics |
| CD-R | Compact Disk-Recordable |
| CD-ROM | Compact Disk-Read Only Memory |
| CD-R/W | Compact Disk-Re-Writable |
| CERN | European Laboratory for Particle Physics |
| CLASS | Computer Literacy and Studies in School |
| COBOL | Common Business Oriented Language |
| CMY | Cyan-Magenta-Yellow |
| COMAL | Common Algorithmic Language |
| CPI | Character Per Inch |
| CPS | Character Per Second |
| CPU | Central Processing Unit |
| CRT | Cathode Ray Tube |
| CU | Control Unit |
| D/A | Digital-to-Analog |
| DBMS | Data Base Management System |
| DDS | Digital Data Storage |
| DHTML | Dynamic Hyper Text Markup Language |
| DIMM | Dual in-Line Memory Module |
| DOS | Disk Operating System |
| DNS | Domain Name System |
| DPI | Dots Per Inch |
| DRAM | Dynamic RAM |
| DRDO | Defense Research and Development Organization |
| DSDD | Double Sided Double Density |
| DTP | Desk Top Publishing |
| DVD | Digital Video / Versatile Disk |
| E-business | Electronic Business |
| E-Commerce | Electronic Commerce |
| E-mail | Electronic Mail |
| EDP | Electronic Data Processing |
| EEPROM | Electrically Erasable Programmable Read Only Memory |
| EPROM | Erasable Programmable Read Only Memory |
| ERNET | Education and Research Network |
| EXE | Execution |
| FAT | File Allocation Table |
| FDM | Frequency Division Multiplexing |
| FET | Field Effect Transistor |
| FIFO | First-in, First-Out |
| FILO | First In, Last Out |
| FLOP | Floating Point Operation |
| FM | Frequency Modulation |
| FORTRAN | Formula Translation |
| FSK | Frequency Shift Keying |
| FTP | File Transfer Protocol |
| GB | Giga Bytes |
| GIF | Graphics Interchange Format |
| GIGO | Garbage-In-Garbage-Out |
| GPRS | General Pocket Radio Service |
| GPS | Global Positioning System |
| GSM | Global System for Mobile |
| GUI | Graphical User Interface |
| HDTv | High Definition Television |
| HLL | High Level Language |
| HP | Hewlett Packard |
| HTML | Hyper Text Markup Language |
| HTTP | Hyper Text Transfer Protocol |
| IAB | Internet Architecture Board |
| IEEE | Institute of Electrical and Electronics Engineers |
| IBM | International Business Machines |
| IC | Integrated Circuit |
| IETF | Internet Engineering Task Force |
| IM | Instant Messaging |
| I/O | Input-Output |
| IP | Internet Protocol |
| IRC | Internet Relay Chat |
| ISDN | Integrated Services Digital Network |
| ISO | International Standards Organization |
| ISOC | Internet Society |
| ISP | Internet Service Provider |
| IT | Information Technology |
| JPEG | Joint Photographic Expert Group |
| KB | Kilo Bytes |
| Kb | Kilo Bits |
| KIPS | Knowledge Information Processing System |
| LAN | Local Area Network |
| LASER | Light Amplification for Stimulated Emission of Radiation |
| LCD | Liquid Crystal Display |
| LED | Light-Emitting Diode |
| LISP | List Processing |
| LLL | Low Level Language |
| LSD | Least Significant Digit |
| LSI | Large Scale Integration |
| MAN | Metropolitan Area Network |
| MIB | Management Information Base |
| MB | Mega Bytes |
| MBPS | Mega bits per Second |
| MHz | Mega Hertz |
| MICR | Magnetic Ink Character Recognition |
| MIDI | Musical Instrument Digital Interface |
| MIPS | Million Instructions Per Second |
| MODEM | Modulator-Demodulator |
| MOPS | Million Operations Per Second |
| MPEG | Moving Pictures Expert Group |
| MP-3 | MPEG-1 Audio Layer 3 |
| MS | Microsoft |
| MSD | Most Significant Digit |
| MSI | Medium Scale Integration |
| MTNL | Mahanagar Telephone Nigam Limited |
| NIC | Network Interface Card |
| NICNET | National Informatics Centre Network |
| NIXI | National Internet Exchange of India |
| OCR | Optical Character Recognition |
| OMR | Optical Mark Reader |
| OOP | Object Oriented Programming |
| OS | Operating System |
| OSS | Open-Source Software |
| PAN | Private/Personal Area Network |
| PC | Personal Computer |
| PCB | Printed Circuit Board |
| PCI | Peripheral Component Interconnect |
| PDA | Personal Digital Assistant |
| PDF | Portable Document Format |
| PM | Phase Modulation |
| POST | Power On Self-Test |
| PPM | Pages Per Minute |
| PPP | Point to Point Protocol |
| PROLOG | Programming in Logic |
| PROM | Programmable Read Only Memory |
| PSTN | Public Switched Telephone Network |
| RAM | Random Access Memory |
| RGB | Red - Green - Blue |
| ROM | Read Only Memory |
| RS-232 | Recommended Standard 2-3-2 |
| SCSI | Small Computer System Interface |
| SEO | Search Engine Optimization |
| SERP | Search Engine Result Page |
| SEQUEL | Structured English Query Language |
| SIMM | Single In-Line Memory Module |
| SMS | Short Message Service |
| SMTP | Simple Mail Transfer Protocol |
| SNOBOL | String Oriented Symbolic Language |
| SQL | Structured Query Language |
| SRAM | Static RAM |
| SSI | Small Scale Integration |
| SVGA | Super Video Graphics Array |
| TB | Tera Byte |
| TCP | Transmission Control Protocol |
| TDM | Time Division Multiplexing |
| TLD | Top Level Domain |
| ULSI | Ultra-Large-Scale Integration |
| UNIVAC | Universal Automatic Computer |
| UPC | Universal Product Code |
| UPS | Uninterrupted Power Supply |
| URL | Uniform Resource Locator |
| USB | Universal Serial Bus |
| UVEPROM | Ultraviolet Erasable Programmable Read Only Memory |
| VAN | Value Aided Network |
| VDT | Visual Display Terminal |
| VDU | Video Display Unit |
| VGA | Video Graphics Array |
| VIRUS | Vital Information Resources Under Seize |
| VLSI | Very Large-Scale Integration |
| VoIP | Voice Over Internet Protocol |
| VSAT | Very Small Aperture Terminal |
| VSNT | Videsh Sanchar Nigam Limited |
| W3C | World Wide Web Consortium |
| WAN | Wide Area Network |
| WAP | Wireless Application Protocol |
| WiMAX | Worldwide Interoperability for Microwave Access |
| WLL | Wireless Local Loop |
| WORM | Write Once-Read Many |
| WWW | World Wide Web |
| XHTML | Extensible Hypertext Markup Language |
| 2G | Second Generation Wireless Networking |
| 3G | Third Generation Wireless Networking Technology |
| 4G | Fourth Generation Wireless |
| 5G | Fifth Generation Wireless |
| 4GL | 4th Generation Language |
