Upgrading and Repairing PCs (17th Edition)

HAN (home area network)

HD (high-density)

HD-ROM (high-density read-only memory)

HDA (head disk assembly)

HDD (hard disk drive)

HDLC (High-Level Data Link Control)

HDTV (high-definition television)

HER (hard error rate)

HFC (hybrid fiber/coax)

HFS (hierarchical file system)

HID (human interface device)

HLF (high-level formatting)

HMA (high memory area)

HP (Hewlett-Packard)

HPA (host protected area)

HPFS (high performance file system)

HPT (high-pressure tin)

HRTF (head-related transfer function)

HST (High-Speed Technology)

HT (hyper-threading)

HTML (Hypertext Markup Language)

HTTP (Hypertext Transfer Protocol)

HVD (high voltage differential)

Hz (Hertz)