A pascaline, calculating machine

Credit: J-L CHARMET/SCIENCE PHOTO LIBRARY

Caption: A pascaline, a mechanical calculating machine, invented by French mathematician & physicist Blaise Pascal (1623-1662) in 1642. Pascal invented the calculating machine, which adds and subtracts by means of cogged wheels, when he was only 19 years old.

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Keywords: adding machine, calculating machine, computing history, historical, pascal's, pascaline, technology

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