| 3DSCEN | Workshop on Interpretation of 3D Scenes | |
| 4PDTC | 4 Pole Double Throw Contact | |
| AA | Author’s Addition | |
| AAAC | Association for the Advancement of Affective Computing | |
| AAE | IEEE Workshop on Automotive Applications of Electronics | |
| AC | Air Capacitor | |
| ACC | American Control Conference | |
| ACIC | Alarm Circuit and Indication Circuit | |
| ACSAC | IEEE Aerospace Computer Security Applications Conference | |
| ACSC | Asilomar Conference on Circuits, Systems, and Computers | |
| ACSRG | Abstract Client/Server Reachability Graph | |
| ACSSC | Asilomar Conference on Signals, Systems, and Computers | |
| ACV | IEEE Workshop on Applications of Computer Vision | |
| ADDTC | Advance Direction Directed Trace Cache | |
| ADFS | Australian Data Fusion Symposium | |
| ADL | Forum on Research and Technology Advances in Digital Libraries | |
| AERO | IEEE Aerospace Applications Conference | |
| AES-M | IEEE Aerospace and Electronic Systems Magazine | |
| AESS | Institute of Electrical and Electronic Engineers – Aerospace and Electronics Systems Society | |
| AESSYM | AESS Dayton Chapter SYMposium on Avionics in Conceptual System Planning | |
| AGBM | Alexander Graham Bell Medal | |
| AHC | Annals of the History of Computing | |
| AIIA | IEEE International Workshop on Artificial Intelligence for Industrial Applications | |
| AIM | Asset Inspection Manual | |
| AL | Across the Line | |
