How do cookies work when browsing websites

Posted by Phenom on Stack Overflow See other posts from Stack Overflow or by Phenom
Published on 2010-04-04T21:06:25Z Indexed on 2010/04/04 21:13 UTC
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On websites where you have to enter a user name and password, I notice that I can browse the site with one browser and it will know who I am no matter where I go on the site. But if I open a different browser it doesn't know who I am in that browser unless I log on in that browser.

After I log in to a website, does it store some kind of cookie in my browser, and every time I navigate to a different page on that site, it checks the cookie for my identity?

What would happen if I logged in, and then before browsing to a different page on the site, deleted the cookie?

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