Explanation of Session Versus Persistent Cookies
Explain how sessions cookies e.g. are used for website login versus persistent cookies which reside for a much longer time on computer systems.
Many websites need to know when a user is logged in.
For this session cookies is ideal since
they are only placed on the computer for the duration the website that placed the cookie is used by the user.
This is vital for websites offering exclusive website parts/functions, e.g. posting-rights on forums/message-boards.
Some websites need to remember information about users for a longer time.
For this persistent cookies are often used. Persistent cookies can sometimes be
placed for a long time on the computer who visited the website that placed the cookie.
This may e.g. allow the website to automatically perform website login for you whenever you visit the website.