| Abbreviation | Definition |
|---|---|
| ALOHA | Advocates of Linux Open-source Hawaii Association |
| ALS | Application Layer Structure |
| ALS | Automatic Line Switching |
| ALSA | Advanced Linux Sound Architechure |
| ALT | Algorithmic Learning Theory |
| ALT | Application Load Table |
| ALU | Association of LISP Users |
| ALUG | Apple Libary Users Group |
| AM | Access Method |
| AM | Automatic Margins |
| AMA | Adaptive Management Area |
| AMBCS | Associate Member of the British Computer Society |
| AMC | Annual Miantenance Contract |
| AMF | Actionscript Messaging Format |
| AMF | Advance Module Format |
| AMI | Atlas Metadata Interface |
| AMIA | Amazon Machine Image Appliance |
| AMIS | Advanced Multimedia Indexing And Searching |
| AMIS | Audio Messaging Interchange Specification |
| AML | Advanced Markup Language |