What is a intranet cookie?

Hi, I am new to internet, I am amazed at how convinient it is.

My internet has a tools button were some nifty options are there for me to control
on mine it says cookies

what is a cookie?

‘Cookies’ are pieces of information that can improve how you navigate the Internet. They can also be a source of spyware.

Please read the following links for further information:
http://surfthenetsafely.com/surfsafely5.htm

Hope this helps you.