B
- B1FF
- B5
- back door
- backbone cabal
- backbone site
- backgammon
- background
- backreference
- backronym
- backward combatability
- BAD
- Bad and Wrong
- Bad Thing
- bag on the side
- bagbiter
- bagbiting
- baggy pantsing
- balloonian variable
- bamf
- banana problem
- bandwidth
- bang
- bang on
- bang path
- banner
- banner ad
- banner site
- bar
- bare metal
- barf
- barfmail
- barfulation
- barfulous
- barn
- barney
- baroque
- BASIC
- batbelt
- batch
- bathtub curve
- Batman factor
- baud
- baz
- bazaar
- bboard
- BBS
- BCPL
- BDFL
- beam
- beanie key
- beep
- Befunge
- beige toaster
- bells and whistles
- bells whistles and gongs
- benchmark
- Berkeley Quality Software
- Berzerkeley
- beta
- BFI
- BI
- bible
- BiCapitalization
- biff
- big iron
- Big Red Switch
- Big Room
- big win
- big-endian
- bignum
- bigot
- bikeshedding
- binary four
- bit
- bit bang
- bit bashing
- bit bucket
- bit decay
- bit rot
- bit twiddling
- bit-paired keyboard
- bitblt
- bits
- bitty box
- bixie
- black art
- black hat
- black hole
- black magic
- Black Screen of Death
- blammo
- blargh
- blast
- blat
- bletch
- bletcherous
- blinkenlights
- blit
- blitter
- blivet
- bloatware
- BLOB
- block
- blog
- Bloggs Family
- blogosphere
- blogrolling
- blow an EPROM
- blow away
- blow out
- blow past
- blow up
- BLT
- blue box
- Blue Glue
- blue goo
- Blue Screen of Death
- blue wire
- blurgle
- BNF
- boa
- board
- boat anchor
- bob
- bodge
- BOF
- BOFH
- bogo-sort
- bogometer
- BogoMIPS
- bogon
- bogon filter
- bogon flux
- bogosity
- bogotify
- bogue out
- bogus
- Bohr bug
- boink
- bomb
- bondage-and-discipline language
- bonk/oif
- book titles
- boot
- Borg
- borken
- bot
- bottom feeder
- bottom-post
- bottom-up implementation
- bounce
- bounce message
- boustrophedon
- box
- boxed comments
- boxen
- boxology
- bozotic
- brain dump
- brain fart
- brain-damaged
- brain-dead
- braino
- brainwidth
- bread crumbs
- break
- break-even point
- breath-of-life packet
- breedle
- Breidbart Index
- brick
- bricktext
- bring X to its knees
- brittle
- broadcast storm
- broken
- broken arrow
- broken-ring network
- BrokenWindows
- broket
- Brooks’s Law
- brown-paper-bag bug
- browser
- BRS
- brute force
- brute force and ignorance
- BSD
- BSOD
- BUAF
- BUAG
- bubble sort
- bucky bits
- buffer chuck
- buffer overflow
- bug
- bug-compatible
- bug-for-bug compatible
- bug-of-the-month club
- bulletproof
- bullschildt
- bump
- burble
- buried treasure
- burn a CD
- burn-in period
- burst page
- busy-wait
- buzz
- buzzword-compliant
- BWQ
- by hand
- byte
- byte sex
- bytesexual
- Bzzzt! Wrong.