| Abbreviation | Definition |
|---|---|
| CPW | Check Password |
| CQ | Clear Queue |
| CR | Command Response |
| CR | Create and Replace |
| CRN | Compare with Random Number |
| CRT | Control Return True |
| CS | Capture Stack |
| CS | Character Set |
| CS | Character String |
| CS | Chip Select |
| CS | Code Segment |
| CS% | Capture Stack |
| CSALT | Christian School Assembly Link Team |
| CSD | Canonical Signed digit |
| CSH | C SHell |
| CSL | Curse and Swear Loudly |
| CSR | Clear Statistical Registry |
| CSR | Command and Status Register |
| CSR | Control and Status Register |
| CSUM | Complex SUM |