- busy signal
- busy token
- butt log
- button bar
- button grabbing
- buzzer
- by analogy
- byte code
- byte compiler
- byte mode
- byte value
- byte-oriented
- bytes space
- C language
- C space
- C-compiler
- cabinet alarm
- cabinet enclosure
- cabinet frame
- cabinet monitoring
- cable code
- cable connector
- cable crane
- cable cut
- cable fault
- cable hooking
- cable kit
- cable path
- cable rig
- cable splicer
- cable-text
- cache line
- cache miss
- cactoid
- calcium carbide
- calculability
- calculagraph
- calculated address
- calculating apparatus
- calendar description
- calking compound
- call collision
- call ID
- call in
- call preference
- call-ware
- callback
- callback modem
- called routine
- calling convention
- calling routine
- calling subscriber
- camera-ready
- cancel button
- canonical equations
- canonical format
- canonical processing
- business graphics
- business language
- business statistics
- business transaction
- busy
- busy hour
- busy relay
- busy test
- button assignment
- button text
- buttress wall
- by
- by-passing
- byte machine
- byte order
- byte switch
- byte-compile
- C library
- cabinet roof
- cable bus
- cable delay
- cable modem
- cable test
- cache
- cache controller
- cache memory
- CAD drawing
- cadence
- calculated azimuth
- calculating data
- calculating graph
- calculating operation
- calendar manager
- calendar program
- calendar week
- calibrate
- call address
- call log
- call setup
- callback function
- called
- called party
- calling card