The most common meaning of Cookie on the Internet refers to a piece of information sent by a Web
Server to a Web
Browser that the Browser software is expected to save and to send back to the Server whenever the browser makes additional requests from the Server. Depending on the type of Cookie used, and the Browser s settings, the Browser may accept or not accept the Cookie, and may save the Cookie for either a short time or a long time. Cookies might contain information such as login or registration information, online shopping cart information, user preferences, etc. When a Server receives a request from a Browser that includes a Cookie, the Server is able to use the information stored in the Cookie. For example, the Server might customize what is sent back to the user, or keep a log of particular user s requests. Cookies are usually set to expire after a predetermined amount of time and are usually saved in memory until the Browser software is closed down, at which time they may be saved to disk if their expire time has not been reached. Cookies
do not read your hard drive and send your life story to the CIA, but they can be used to gather more information about a user than would be possible without them. See Also:
Browser ,
Server
