| Abbreviation | Definition |
|---|---|
| AUI | Attachment User Interface |
| AUM | Annual Upgrade Maintenance |
| AUO | Active User Object |
| AUP | Any Usable Program |
| AVC | Advanced Video Coding |
| AVC | Audio for Video Coding |
| AVC | Average Variable Courseweb |
| AVI | Audio Video Interleave |
| AVL | Advanced Vector Library |
| AVM | Active Virtual Memory |
| AVPP | Apple Volume Purchase Program |
| AVR | Advanced Virtual Risc |
| AVR | Automatic Volume Recognition |
| AVS | Advanced Visualization System |
| AVT | Automated Voice Technology |
| AVW | Advanced Video Workstation |
| AW | Alienware |
| AWK | Aho Weinberg And Kernighan |
| AWK | Aho Weinberger And Kernighan |
| AXIS | Ais Xml Integrated System |