magic cookie
  • A block of data prepared by a Web server, which is sent to a Web browser for storage, and which remains ready to be sent back when needed. A user initially provides key information, such as that required for an online purchase, and this is stored in a cookie file. When a user returns to the Web site of this online retailer, the cookie is sent back to the server, enabling Web pages that are customized to include information such as the mailing address, viewing preferences, or the content of a recent order. Also called cookie, Internet cookie, browser cookie, or Web cookie.
  • In UNIX, a data object passed between routines or programs which facilitate interaction.

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