| Abbreviation | Definition |
|---|---|
| BISD | Built In Self Diagnosis |
| BIST | Built In Self Test |
| BITE | Built-In Test Equipment |
| BITS | Boot Integrity Token System |
| BJ | Bubble Jet |
| BJC | Bubble Jet Color printer |
| BL | Back Light |
| BL | Base Layer |
| BLIP | Breadboard Lab Interface Processor |
| BLIP | Breadboard Laboratory Interface Package |
| BLTS | Bayanihan Linux Terminal Server |
| BLU | Back Light Unit |
| BM | Battle Mac |
| BM | Button Masher |
| BMA | Before Memory Access |
| BMC | Baseboard Management Controller |
| BO | Bus Out |
| BOB | Bolt On Box |
| BOC | Beginning Of Cycle |
| BOMA | Brankamp Open Modular Architecture |