Helper Application: A program allowing you to view multimedia files (images, audio, video) that your web browser cannot handle internally. The file must be downloaded before it will be displayed. There are some plug-ins that allow you to view the file over the Internet without downloading it first.

Hit: A "hit" is a single request from a web browser for a single item from a web server. For example, a page displaying 3 graphics would require 4 hits: one for the HTML document, and one for each of the 3 graphics. "Hits" are often used as a rough measure of load on a server; however, because each hit can represent a request for anything from a tiny document to a complex search request, the actual load on a machine from a single hit is impossible to define.

Home Page (or Homepage): Originally, a home page was the web page that your browser is set to use when it starts up. The more common definition refers to the main web page for any business or personal site.

Host: Any computer on a network that is a repository for services available to other computers on the network. It is common to have one host machine provide several services, such as WWW and USENET.

HTML: (HyperText Markup Language) - The language used to build hypertext documents on the WWW. They are nothing more than plain ASCII-text documents interpreted (or rendered) by a web browser to display formatted text and fonts, color, graphic images, and links.

HTTP: (HyperText Transfer Protocol) - The protocol for moving hypertext (HTML) files across the Internet. This requires a HTTP client program on one end and a HTTP server program on the other end. HTTP is the most important protocol used on the WWW.

Hypertext: Text in a document that contains a link to other text. Hypertext is used in Windows help programs and CD encyclopedias as well as web pages to link and reference related information across documents.