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An abacus is a traditional counting tool used for arithmetic calculations, consisting of a frame with rods or wires on which beads are moved to represent numbers. It dates back thousands of years and is still used in various cultures today. The pascaline, invented by Blaise Pascal in the 17th century, is an early mechanical calculator designed to perform addition and subtraction. It uses a series of interconnected gears and dials to facilitate calculations, marking a significant advancement in the development of computing devices.

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1w ago

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