- H&K
- H.264
- h/o
- h/p
- H2CUS
- H2S
- H4U
- H4XX0R
- H9
- hack
- Hack-o-grams
- hacker
- hacker ethic
- hacker jargon
- hacktivist
- HADVD
- hag1
- HAGD
- HAGN
- HAGO
- hahaha
- Haiku poetry error messages
- hairball
- HAK
- HAL
- halo effect
- ham
- hamburger navigation
- HAND
- hand salsa
- hand-holding
- handheld
- handheld device
- handle
- hands-off
- hands-on
- handshake
- handwriting recognition
- handy
- hang
- hang-time
- hangry
- haptics
- HAR
- hard copy
- hard disk
- hard drive
- hardlink
- hardware
- hardwired
- harvest or harvesting
- hashing
- hashtag
- hashtag activism
- hat color
- haunting
- HAWTLW
- HAY
- Hayes compatible
- HB
- HBASTD
- HBB
- HBIB
- HBIC
- HBO
- HBTU
- HBU
- HCC
- HD
- HDGFS
- HDM
- HDML
- HDSL
- HDTV
- HEA
- head end
- header
- headmount
- heads-down tribe
- heart bargain
- heat map
- heat-seeking work force
- heavy Internet user
- heavy lifting
- height technology
- heisenbug
- helfie
- helicopter parent
- helper application
- hemming and hawing
- HENRY
- Henry the Forger
- hertz (Hz)
- heuristics
- hexadecimal
- HF
- HFC
- HHFO
- HHH
- HHIS
- HHO1/2K
- HHOJ
- HHOK
- HHOS
- HHTYAY
- Hi 5
- hierarchy
- HIG
- high dome
- high key
- high-speed
- high-tech
- high-touch
- highbrow
- HIH
- hijacker
- hijackware
- hillbilly heroin
- HIOOC
- hippie dippie
- HIPPO
- hire number
- history
- hit
- hit my clip
- HITAKS
- hive
- HMFIC
- HMFWICC
- HML
- HMOT
- HMU
- HNTI
- HNTW
- HNY
- HO
- HODL
- HOHA
- HOIC
- holds the keys
- Hollywired
- hologram
- holoportation
- holy war
- home automation
- home networking
- home slice
- homebrew
- homepage
- HomePNA
- HomeRF
- homeshoring
- homestead
- homograph
- homonym
- homophone
- HoneyMonkey
- honeypot
- hook and book
- horizontal play
- hose and close
- hospitality hack
- host
- host name
- hosting
- hot desking
- hot issue
- HOT PIC
- hot plugging
- hot potato routing
- hot spot
- HotJava
- hotlink
- hotlist
- hotspot
- hourglass mode
- house ad
- house file hygiene
- house mouse
- hover
- howru
- HOYEW
- HP
- HPOA
- HPPO
- HR
- HRCN
- HSAY
- HSDPA
- HSIAB
- HSIK
- HT
- HTB
- HTH
- HTML
- HTML banner
- HTML e-mail
- HTML Reference Library
- HTML sequence
- HTML5
- HTNOTH
- htpasswd
- HTTP or http
- HTTPD or httpd
- HTTPS or https
- HU
- HUA
- HUB
- HUD
- huge pipes
- Huggle
- HUGZ
- huh
- human capital
- human cloning
- human gateway
- humble brag
- hunda p
- Hundo P
- hunt-and-peck
- hunty
- HUYA
- HV
- Hwevr
- HWGA
- hx
- hybrid
- hybrid work
- hydraulics of the situation
- hype
- hyperlink
- hyperlocal
- hypermedia
- hyperpower
- hyperspeed
- hyperstitial
- hypertext
