E
- Easter egg
- Easter egging
- eat flaming death
- EBCDIC
- ECP
- ed
- egg
- egosurf
- eighty-column mind
- El Camino Bignum
- elder days
- elegant
- elephantine
- elevator controller
- elite
- ELIZA effect
- elvish
- EMACS
- emoticon
- EMP
- empire
- engine
- English
- enhancement
- ENQ
- EOD
- EOF
- EOL
- EOU
- epoch
- epsilon
- epsilon squared
- era
- Eric Conspiracy
- Eris
- erotics
- error 33
- eurodemo
- evil
- evil and rude
- Evil Empire
- exa-
- examining the entrails
- EXCH
- excl
- EXE
- exec
- exercise, left as an
- Exon
- Exploder
- exploit
- external memory
- eye candy
- eyeball search