There are two types of COOKIES:
Session (Transient) cookies: these cookies are erased when you close your browser, and do not collect information from your computer. They typically store information in the form of a session identification that does not personally identify the user.
Persistent (Permanent/Stored) cookies: these cookies are stored on your hard drive until they expire (i.e based on a set expiration date) or until you delete them. These cookies are used to collect identifying information about the user, such as Web surfing behavior or user preferences for a specific site.