Cookie
A cookie is a message that a web server generates and sends to a web browser when a page has been requested from the server. The browser then stores the cookie in a text file. The cookie is then sent back to the server every time a web page is requested from the remote server. The server will then add more information to the cookie to say what link was clicked on and what page was requested. The purpose of a cookie is to identify a browser and also prepare custom pages by the information that is stored in the cookie. The the cookie is stored on your PC and not on the web server because the amount of space required to store all the cookies would require alot of hardware and would be very exspensive. The cookie on your PC will only be 5K at the most so it will not make a difference on the performance of your PC.
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