| AAB | Adaptive Angle Bias |
|---|---|
| AAS | Adaptive Antenna System |
| ABAS | Adaptive Behavior Assessment System |
| ABB | Adaptive Body Bias |
| ABS | Adaptive Business Systems |
| ABT | Adaptive Block Transform |
| AC | adaptive control |
| ACC | Adaptive Cruise Control |
| ATC | Adaptive Transform Coding |
| RAM | Rate Adaptive Mode, metóda na určenie DSL šírky pásma |