| Abbreviation | Definition |
|---|---|
| BTTP | Block-Type Thermal Power station |
| BTTR | BlueTooth Touchpad Remote control |
| BTTT | Bash That Thing Twice |
| BTX | Balanced Technology eXtended |
| BURP | Basic Undergraduate RISC Processor |
| BUS | Back Up System |
| BUZ | BUZzer clock input line |
| BXC | Broadband Cross-Connect |
| BYM | Blank Your Monitor |
| BYOH | Bring Your Own Hardware |
| BYOS | Build Your Own System |
| C | Capacitor |
| C | Computer |
| C | Core |
| C | Customer device |
| C | form C (break-before-make) contacts |
| C&I | Control and Instrument |
| C2D | Intel Core 2 Duo |
| C2Q | Intel?? Core???2 Quad |
| C2Q | Intel® Core"2 Quad |