| 1 | 2G | second generation |
| 2 | 3G | THIRD GENERATION |
| 3 | A | ACCUMULATOR REGISTER |
| 4 | A/D | ANALOG-TO-DIGITAL |
| 5 | ABC | ATANASOFF BERRY COMPUTER |
| 6 | ACL | ACCESS CONTROL LIST |
| 7 | ACM | ASSOCIATION FOR COMPUTING MACHINERY |
| 8 | AI | ARTIFICIAL INTELLIGENCE |
| 9 | ALGOL | ALGORITHMIC LANGUAGE |
| 10 | ALU | ARITHMETIC LOGIC UNIT |
| 11 | AM | AMPLITUDE MODULATION |
| 12 | AMD | ADVANCED MICRO DEVICES |
| 13 | ANSI | AMERICAN NATIONAL STANDARDS INSTITUTE |
| 14 | APL | A PROGRAMMING LANGUAGE |
| 15 | ARPANET | ADVANCED RESEARCH PROJECT AGENCY NETWORK |
| 16 | ASCII | AMERICAN STANDARD CODE FOR INFORMATION INTERCHANGE |
| 17 | ATM | AUTOMATIC TELLER MACHINE ASYNCHRONOUS TRANSFER MODE |
| 18 | BARC | Bhabha Atomic Research centre |
| 19 | BASIC | Beginners all purpose symbolic instruction code |
| 20 | BCD | Binary coded decimal |
| 21 | BIOS | Basic Input Output system |
| 22 | BIPS | Billions of instruction per second |
| 23 | B- ISDN | Broadband ISDN |
| 24 | BNA | Burroughs Network Architecture |
| 25 | BPI | Bytes Per Inch |
| 26 | BSD | Berkeley Software Distribution |
| 27 | BSNL | Bharat Sanchar Nigam Limited |
| 28 | CAD | Computer Aided Design |
| 29 | CAE | Computer Aided Engineering |
| 30 | CAM | Computer Aided Manufacturing |
| 31 | CAN | Campus Area Network |
| 32 | CASE | Computer Aided Software Engineering |
| 33 | CD | Compact Disk |
| 34 | C-DAC | Centre for Development of advanced Computing |
| 35 | CDC | Control Data Corporation |
| 36 | CD-R | CD-Record able |
| 37 | CD-ROM | Compact Disk Read Only Memory |
| 38 | CD- RW | CD Read/Write |
| 39 | CHS | Cylinder Head Sector |
| 40 | CISC | Complex Instruction Set Computer |
| 41 | CL | Command Language |
| 42 | CLI | Common Language Infrastructure; Command Line Interface |
| 43 | CLR | Common Language Runtime |
| 44 | COBOL | COmmon Business Oriented Language |
| 45 | CODASYL | Conference On DAta S Y stems Language |
| 46 | CPPM | Content Protection for Pre- recorded Media |
| 47 | CPS | Characters Per Second |
| 48 | CPU | central Processing Unit |
| 49 | CRT | Cathode ray tube |
| 50 | CSCW | Computer Supported Cooperative working |
| 51 | CU | control Unit |
| 52 | D/A | Digital to Analog |
| 53 | DAT | Digital Audio Tape |
| 54 | DBMS | Data Base Management System |
| 55 | DBS | Demand Based Switching |
| 56 | DDL | Data Definition Language |
| 57 | DDS | Digital Data Storage |
| 58 | DEC | Digital Equipment Corporation |
| 59 | DMA | Direct Memory Access |
| 60 | DML | Data Manipulation Language |
| 61 | DNA | Digital Network Archityecture |
| 62 | DPI | Dots per Inch |
| 63 | DRAM | Dynamic RAM |
| 64 | DRDO | Defense Research and Development organization |
| 65 | DSN | Distributed Systems Network |
| 66 | DTS | Digital Theater System |
| 67 | DVD | Digital video/ versatile Disk |
| 68 | EBCDIC | Extended binary coded decimal interchange code |
| 69 | ECMA | European computer manufacturers association |
| 70 | EDSAC | Electronic delay storage automatic calculator |
| 71 | EDVAC | Electronic discrete variable automatic computer |
| 72 | EEPROM | Electrically EPROM |
| 73 | EFM | Eight-to fourteen modulation |
| 74 | ENIAC | Electronic numerical integrator and calculator |
| 75 | EPG | Electronic programming guide |
| 76 | EPIC | Explicitly parallel instruction computing |
| 77 | EPROM | Erasable programmable read-only memory |
| 78 | ERNET | Education and research NETWORK |
| 79 | FAT | FILE ALLOCATION TABLE |
| 80 | FDM | FREQUENCY DIVISION MULTIPLEXING |
