- ABC - Atanasoff Berry Computer
- AC - Alternating Current
- ACE - Access Control Entry
- ACM - Association for Computing Machinery
- ADB - Apple Desktop Bus
- ADSL - Asymmetric Digital Subscriber Line
- AGP - Accelerated Graphics Port
- AI - Artificial Intelligence
- ASCC - Automatic Sequence Controlled Calculator
- ASCII - American Standard Code for Information Interchange
- ALGOL - Algorithmic Oriented Language
- ALU - Arithmetic Logic Unit
- ANSI - American National Standard Institute
- API - Application Programming Interface
- APIPA - Automatic Private Internet Protocol Addressing
- APL - A Programming Language
- APT - Automatically Programmed Tooling
- ARP - Address Resolution Protocol
- ARCNET - Attached Resource Computer NETwork
- ARPA - Advanced Research Project Agency
- ARPANet - Advanced Research Projects Agency Network
- ASCII - American Standard Code for Information Interchange
- ASP - Active Server Pages
- AT - Advance Technology
- ATAPI - Advanced Technology Attachment Packet Interface
- ATM - Automated Teller Machine
- AVG - Anti-Virus Guard
- AVI - Audio Video Interleave
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..
..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..