Computers and Technology

Which one of these websites raised the popularity of the pound sign "#"?

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What protocol is used to transfer web page text and resources to a client browser?
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What online company was founded by Sergey Brin and Larry Page in 1998?
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What standard has been proposed for encrypting and authenticating Internet e-mail data?
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Where can you locate a record of all the sites you have visited on your browser?
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Which website made the word "unfriend" popular on social media?
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From what two words is the term "pixel" derived?
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Which early British computer was manufactured by Acorn?
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For what computer did Microsoft introduce the Z-80 SoftCard, a circuit board, in 1980?
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