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One of the earliest recoreded calculating devices. Created in 500 B.C.
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He creaated the world's first calculator in 1642.
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The Mark 1 was the world's 1st digital computer. It was more than 50 feet long and weighed almost 5 tons. Made in 1944.
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This was the 1st computer to be mass produced. In 1952 it was used to analyze votes and predicted correctly that Eisenhower would win.
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First mouse was invented by Doug Engelbart.
