Are the cookies that reside in your computer necessary? Sometimes yes. Let's say you use the Internet Explorer browser to access the Web. Each time you download a page, your computer accesses a ...

Recently, little boxes began popping up on Web pages I visited. They showed my picture and welcomed me by name. They also included details that made it clear these sites knew I was a Facebook member.

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From data being sent and received in milliseconds to complex algorithms determining what appears on our screens, there's a lot that happens behind the scenes when we browse the web. Cookies are ...