The Cookie Crumbles . The Web was designed to be stateless, i.e. you are only connected to the website for the time it takes to download the page. If you go back to get another page from the same site there was no way to know if you were the same person who got the page a few minutes ago. So there was no way for a website to know whether one page request was connected to another. For most sites, this is fine.
Visitors see what they want, then leave.
In other words, we need a way of keeping track of website sessions rather than merely page requests. Cookies , which are small pieces of information stored on your computer, help do just that. Cookies are stored on your computer. Like all good things if misused cookies can create a problem. Currently there is not set standard on the way to use cookies.