B
B	Byte
b	bit
B2B	business-to-business
B2C	business-to-consumer
BASIC	Beginners All Purpose Symbolic Instruction Code
BBS	Bulletin Board System
BCC	Blind Carbon Copy
BDC	Backup Domain Controller
BICMOS	Bipolar Complementary Metal Oxide Semiconductor
BIOS	Basic Input/Output System
BITNET	Because Its Time NETwork
BMIDE	Bus Managed Integrated Drive Electronics
BNC	Baynet N-type Compact
BPL	bits Per Line
BPP	bit Per Pixel
BPS	bit Per Second