| Abbreviation | Definition |
|---|---|
| AROW | Action Research On the Web |
| ARP | Amiga Resource Project |
| ARPA | Address Resource Program Access |
| ARPA | Advanced Rapid Process Agent |
| ARRT | Advanced Risk Reduction Tool |
| ART | Advanced Rendering Technology |
| ART | Advanced Reporting Toolkit |
| ARTR | Almost Ready To Run |
| ARTYM | Advanced Real-Time Yield Management |
| AS | Active Screensaver |
| AS | Advanced Solutions |
| ASA | Animate Singular Agent |
| ASAD | Association of Software Author & Distributors |
| ASAP | As Simple As Photoshop |
| ASAP | Automatic Searching Automatic Programming |
| ASAP | Automatic Service Activation Program |
| ASAS | Agile and Software Architecture Symposium |
| ASC | Advanced SystemCare |
| ASCOP | Algorithmic Structuring and Compression of Proofs |
| ASD | Andromeda Software Development |