A small text file of information that certain Web sites 
attach to a user's hard drive while the user is browsing 
the Web site. A Cookie can contain information such as user 
ID, user preferences, archive shopping cart information, 
etc. Cookies can contain Personally Identifiable 
Information.
Session is a connection between a server and client.

Session Cookies are small bits of information that a web
site can store on your computer. These little bits of
information cannot be viruses or harmful programs. Many
cookies are used to tell a web site when you visited their
site last, or if you are shopping online, it holds your
shopping cart number so that it can keep track of any items
you want to buy. This site uses a session cookie, which is
used so that once you have logged into web pages that have
security on them, you don't have to log in on other pages
that also require security. It remembers who you are (with
an anonymous code), and checks your login information on
each page.