High Definition Multimedia Interface, one of HD video connectors.
High-Definition Television (HDTV) is a digital television broadcasting system with higher resolution than traditional television systems (standard-definition TV, or SDTV).
Hyper Text Markup Language. A set of codes inserted in a file intended for display on a World Wide Web browser page.
As a network product, a hub may include a group of modem cards for dial-in users, a gateway card for connections to a Local Area Network (LAN), and a connection to a line.
Hz (Hertz) :
Cycles per second.
Hand Geometry :
A biometric access control technology that verifies a person's identity by using the variations in hand size, finger length, and finger thickness.
Historical Log :
A chronological record of events.
Host Computer :
The central controlling computer from which access control software applications are run.