| Abbreviation | Definition |
|---|---|
| C# | C-Sharp |
| C++ | C-Plus-Plus |
| C4ISR | Command, Control, Communications, Computers, Intelligence, Surveillance, and Reconnaissance |
| CA | Clip Art |
| CA | Collision Avoidance |
| CA | Computer Accuracy |
| CA | Computer Aided |
| CAA | Computer Aided Architecture |
| CAA | Computer Aided Or Assisted |
| CAA | Computer-Aided Assessment |
| CAD | Computer Aided Design |
| CAD | Computer Aided Difficulty |
| CAD | Control-Alt-Delete |
| CADD | Computer Aided Design and Drafting |
| CADE | Computer-Assisted Data Entry |
| CADIS | Computer Aided Design Interactive System |
| CAE | Common Application Environment |
| CAE | Computer Aided Engineering |
| CAE | Computer Assisted Education |
| CAF | Crunched Article File |