Cookie
A cookie is a small file in a special directory on a computer and is used the exchange of information between computer programs or the temporary archiving of information. A cookie consists at least of its name and its content. In addition there may be information about the appropriate use.
The cookie is stored locally on the computer of a person surfing The cookie contains information related to the current web site. Some cookies are only active as long as the browser is open, but others can last for several days or weeks be active. These are saved as a file in a cookie directory on the computer when the browser is closed.