Custom Settings Custom Settings Cookies can do many useful things. Before describing what cookies can do, here is a list of what cookies cannot do. Run programs or delete files. Monitor your activities other than the cookies themselves and the state of those cookies.
Cookies are lines of text in files that store fields and values.
This is very helpful when using shopping carts or for personal settings at certain web sites. It allows the web server to place useful and unique details about you into a file and allow that same server to see those items along with the other files you request. For example, if you subscribe to the Wall Street Journal 's Interactive Edition, cookies are used to set your personal preferences and settings as values in your computer. Now, each time you use your browser to call for your online edition, the server is told what to do and how you prefer to view your pages. Your cookies are helpful in this setting.