input: [1] Cookies [2] url date / time computer username remote session ids other data you gave the remote site [3] Cookies are vital for site personalization and authentication. They are benign except that they can contain data which could be found and used to tie you to sessions on other servers, topics you are interested in (based on searches, ads clicked, etc.). [4] Indefinite. Lifetime of the cookie, then as long as it takes for the info on the disk to be over-written. [0] 
output: Next your browser sets cookies that Google requested. Almost there!