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Hamid Behnam · Answer 1 · 2020-04-24T01:58:53+0000

Blaise Pascal invented a mechanical calculator with a sophisticated carry mechanism in 1642. ... Pascal's invention of the calculating machine, just three hundred years ago, was made while he was a youth of nineteen.

Charlesdg · Answer 2 · 2020-04-27T04:16:12+0000

Blaise Pascal invented a mechanical calculator with a sophisticated carry mechanism in 1642. ... Pascal's invention of the calculating machine, just three hundred years ago, was made while he was a youth of nineteen.

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