H

hack

Ingenious and/or extremely efficient solution to a problem, particularly within the programming world.

hacker

Term used within the community to describe anyone who enjoys computers and possesses some skill therein, either in a professional capacity or as a hobby. This term is distinct from connotations of maliciously breaking into computers propagated by the media. See also cracker.

host

Shorthand referring to any computer that acts as a server to another computer. See also client.

HP-UX

Hewlett-Packard’s proprietary form of Unix designed to work on its own hardware platform.

Hurd

Kernel being developed by GNU Project, The. It’s not associated with the Linux kernel in any way.