CAPTCHA stands for "Completely Automated Public Turing test to tell Computers and Humans Apart".
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While it took the radio 38 years, and the television a short 13 years, it took the World Wide Web only 4 years to reach 50 million users.
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IMDb is one of the oldest websites on the internet, and began on Usenet in 1990 as a list of "actresses with beautiful eyes".
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Mathway.com solves all kinds of math homework problems with step by step explanations.
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