| ABR | Area Border Router |
|---|---|
| AC | analog computer (skr.), analógový počítač (angl.skr.) |
| AC | automatic computer (skr.) |
| ACC | Academic Computer Club |
| ACE | Automatic Computer Equipment (skr.) |
| ACS | Australian Computer Society |
| ACT | Advanced Computer Technology |
| ADC | Air Data Computer |
| AR | Agence Reuter (skr.) |
| BERGGRAV | nórsky spisovateľ, luteránsky biskup a antifašista (Eivind, 1884-1959) |