Index

1. Method of sorting data by creating keywords or a listing of the data. A great example of an index of Computer Hope's hardware listing can be found by clicking here.
2. When referring to the Internet or web pages, an index is more commonly known as a index.htm, index.html, or index.asp. The index file is commonly the first file loaded when accessing a directory on a web site. For example, when visiting Computer Hope at http://www.computerhope.com you are actually accessing http://www.computerhope.com/index.htm.
3. An index may also be a brief summary or section of a page or pages of documents created to allow another program or search engine to capture keywords or search several documents more quickly.

Also see: Search engine