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Internet cookies:

A "cookie" is a special text file that programs on a Web site server place onto your hard disk so it can remember something about you at a later time. Typically, a cookie records your preferences when using a particular site. Using the Web's Hypertext Transfer Protocol (HTTP), each request for a Web page is independent of all other requests. For this reason, the Web page server has no memory of what pages it has sent to a user previously or anything about your previous visits. A cookie is a mechanism that allows the server to store its own file about a user on the user's own computer. The file is stored in a subdirectory of the browser directory (for example, as a subdirectory under the Netscape directory). The cookie subdirectory will contain a cookie file for each Web site you've been to that uses cookies.

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