Resources: IT World Glossary

HAL

Heuristically programmed ALgorithmic computer. Where heuristically refers to encouraging the discovery of solutions and the ability to change—as in a computer able to modify itself.

HDLC

High-level Data Link Control

HFC

Hybrid Fiber-Coaxial - modern cable net works use both types of cabling. Coaxial cable feeder lines to the individual premises and fiber optic backbones for communication between CMTS and systems hubs.

Hijacking

Attacks that take over the conversation between two authorized systems after the authentication process to allow unauthorized systems to appear legitimate.

HIPAA

Health Insurance Portability and Accountability Act

HTML

Hyper Text Markup Language – essentially the hidden format codes next to text and pictures that allow a common way to identify font, format, and layout of the document viewed within the browser application.

HTTP

Hypertext transfer protocol – an Internet protocol used by the Web server and client browser to communicate.

Hub

Multi-port repeater