During the process of exploring the site you put things into what is called a shopping cart. At a later date you return to the site only to find out that the original items selected are still in your shopping cart. It happened because you were given something called a cookie. That particular WWW site has written information on your hard drive, floppy or ZIP disk, that contains specifics about what you have previously done at their WWW site.
Cookies can be extremely handy.
However, as a user you may want to know when a WWW site is going to give you one. Netscape allows you to be notified when a cookie is in the process of being given to you. You may want to consider turning on the cookie alert feature . From now on, you will notified with a message each time a site wants to write on your hard drive, floppy or ZIP disk and leave you a present, a cookie.