HTTP cookies, sometimes known as web 饼干 或者 just cookies, are parcels of text sent 由 a server to a web browser and then sent back unchanged 由 the browser each time it accesses that server. HTTP 饼干 are used for authenticating, tracking, and maintaining specific information about users, such as site preferences and the contents of their electronic shopping carts. The term "cookie" is derived from "magic cookie," a well-known concept in Unix computing which inspired both the idea and the name of HTTP cookies.
