H
- H.241
- H.242
- H.263
- H.320
- H.323
- H.350
- H.460
- Hack
- hackathon
- hacker
- hacker group
- hacker-powered security
- hacking
- hacktivism
- HAD
- hairline
- HAL
- half adder
- half-adjust
- half-closed interval
- half-duplex transmission
- half-height drive
- half-life of knowledge
- half-open interval
- halftone angle
- halftoning
- Hall effect
- Hall-effect device
- halt
- halt mode
- halting problem
- Hamilton graph
- Hamming code
- Hamming distance
- HAMR
- HAN
- hand guiding
- hand model
- hand optimization
- hand tracker
- hand tracking
- hand translation
- hand-coded
- hand-hacking
- hand-off
- handfree
- handheld computer
- handheld scanner
- handheld system
- handheld video game console