HTTP cookies, or internet cookies, are built specifically for Internet web browsers to track, personalize, and save information about each user’s session. A “session” just refers to the time you spend on a site.
Cookies are created to identify you when you visit a new website. The web server — which stores the website’s data — sends a short stream of identifying info to your web browser.
Browser cookies are identified and read by “name-value” pairs. These tell cookies where to be sent and what data to recall.