The ‘@’ sign is centuries old, and was used in Europe to denote a unit of weight (the “arroba”) equivalent to 25 lbs.
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CAPTCHA stands for "Completely Automated Public Turing test to tell Computers and Humans Apart".
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Computer programming is currently one of the fastest growing occupations.
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Hewlett Packard was started at a garage in Palo Alto in 1939.
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