Computer Science, asked by rekhu0357pcj3f6, 1 year ago

.............was the first manual calculating device.

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Answered by arpit0508

Abacus was the first calculating device

Answered by aski

A mechanical calculator, or calculating machine, is a mechanical device used to perform automatically the basic operations of arithmetic. ... Surviving notes from Wilhelm Schickard in 1623 reveal that he designed and had built the earliest of the modern attempts at mechanizing calculation.

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