| AACO | Australian Agricultural Company (skr.) |
|---|---|
| ABC | Advanced Base Component |
| ABC | Agent Based Computing |
| ABC | American Broadcasting Company, americká rozhlasová a televízna spoločnosť, televízna stanica v USA |
| AC | analog computer (skr.), analógový počítač (angl.skr.) |
| AC | Australian companion (skr.), hodnosť v ráde Order of Australia |
| AC | automatic computer (skr.) |
| ACC | Academic Computer Club |
| ACE | Automatic Computer Equipment (skr.) |
| ACM | Association for Computing Machinery |