| Abbreviation | Definition |
|---|---|
| CW | Component-Wise |
| CYL | CYLinder |
| D | Diode |
| D | Drain |
| D | form D (make-before-break) contacts |
| DA-15 | 15-pin D-SUB (series D subminiature) connector |
| DAB | Device Adapter Board |
| DAC | Digital Audio Comunicator |
| DAC | Digital-to-Analog Conversion |
| DAC | Dual Address Cycle |
| DACCS | Digital Access Cross-Connect System |
| DACCS | Digital-to-Analog Converter Chip Select |
| DACR | Domain Access Control Register |
| DACS | Digital Audio Control System |
| DAD | Digital Asset Distribution |
| DAE | Disk Array Enclosure |
| DART | Digital Audio Recording Technology |
| DAS | Data Acquisition System |
| DAS | Distributed AML (Automated Media Libraries) Server |
| DAS | Dual Attachment Station |