H
- HDA – High Definition Audio - Multimedia
- HDC – Hard Disc Controller - Massenspeicher
- HDD – Hard Disc Drive - Massenspeicher
- HDL – Hardware Description Language - Software
- HDR – High Dynamic Range - Grafik
- HDMI – High Definition Multimedia Interface - Multimedia
- HDTV – High Definiton Television - Multimedia
- HID – Human Interface Decive (Eingabegeräte) - Windows
- HSDPA – High Speed Downlink Packet Access – Internet
- HSUPA – High Speed Uplink Packet Access – Internet
- HT – Hyper Threading (Technology) - Prozessor