hacker - A person who delights in having an intimate understanding of the internal workings of a system, computers and computer networks in particular. The term is often misused in a pejorative context, where "cracker" would be the correct term.
header - The portion of a packet, preceding the actual data, containing source and destination addresses, and error checking and other fields. A header is also the part of an electronic mail message that precedes the body of a message and contains, among other things, the message originator, date and time. See also: Electronic Mail, packet.
Helper-App - A type of Broswer Add-on. Your browser displays lots of things --namely, GIF pictures, text, sound, and video. But no one browser displays everything the millions of web pages out there contain. When your browser comes across files it doesn't recognize, such as an animation, it consults its list of helper-apps and chooses one of them so it can use the files. Helper-apps are very similar to Plug-ins. But unlike Plug-ins they work independently of your browser and are stand-alone programs.
Home Page - The main page of a Web Site.
hop - A term used in routing. A path to a destination on a network is a series of hops, through routers, away from the origin.
Host (Hosting Service) - A powerful server linked directly to the Internet that serves as a "host" or repository for one or more Web Sites.
host - A computer that allows users to communicate with other host computers on a network. Individual users communicate by using application programs, such as electronic mail, Telnet and FTP.
host address - See: internet address
hostname - The name given to a machine. See also: Fully Qualified Domain Name.
host number - See: host address
HTML (Hyper-Text Markup Language) - The language World Wide Web pages are written in.
HTML Accessories (Hyper-Text Markup Language Accessories) - World Wide Web page authoring programs that help create tables, forms, image maps, Java applets, etc....
HTML Editors (Hyper-Text Markup Language Editors) - World Wide Web page editing programs that use buttons and icons to insert coded tags.
HTTP (Hyper-Text Transfer Protocol) - The protocol used on the World Wide Web. This protocol moves Hyper-Text files (i.e. the *.html files used in World Wide Web Pages) across the Internet.
HYPER-TEXT - Text containing "links" to other documents. A reader selects highlighted text which causes another document to be retrieved and displayed.
