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H


helper application
Your Web browser can't handle all the files it encounters as you surf; it calls on helper applications for special, often multimedia, files you try to access. These applications don't come preinstalled in your browser; you must install and configure them so that they take over when your browser comes across an audio or video file.

hexadecimal code
The six-digit code used to specify colors to be displayed on the Web. While the major browsers now recognize 16 predefined colors by name (white, black, red, blue, green, yellow, gray, silver, purple, navy, olive, teal, cyan, maroon, magenta, and lime), all others require a "#" sign followed by a six-digit number, all within quotation marks. White, for example, is "#ffffff" and black is "#000000".

homepage
Also home page. The main page or first page of a Web site. Homepages of individuals are usually referred to as personal homepages.

host
A computer connected to the Internet that stores and provides information of some sort. Email is kept on a host. So are Web pages. A host is also called a server.

hostname
The name of a particular host computer, or server, on the Internet.

.hqx
A common Mac file extension. Files ending in ".hqx" have been compressed in BinHex format. To decompress an .hqx file and use it, you need a program like Stuffit Expander.


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