HAGO - Have A Good One (Adiós).

HDLC - High-level Data Link Control.

HDSL - High-bit-rate Digital Suscriber Line.

HDTV - High Definition Television (Televisión de alta definición).

HGC - Hercules Graphics Card.

HHOK - Ha, Ha, Only Kidding (ha, ha simplemente bromeaba).

HIPPI - High Performance Parallel Interface.

HLS - Hue-Lightness-Saturation (matiz-brillo-saturación).

HP/UX - Hewlett-Packard UNIX.

HPFS - High Performance File System.

HPGL - Hewlett-Packard Graphics Language.

HPIB - Hewlett-Packard Interface Bus.

HPPCL - Hewlett-Packard Printer Control Lenguage (Lenguaje de control de impresora).

HSB - Hue-Saturation-Brightness (matiz-saturación-brillo).

HSV - Hue-Saturation-Value (matiz-saturación-valor).

HTML - Hypertext Markup Language (lenguaje de marcas de hipertexto).

HTTP - Hypertext Transfer Protocol.

HTTP-NG - Hypertext Transfer Protocol Next Generation.

HTTPS - Hypertext Transfer Protocol Secure.