Question

Describe any three calculating devices invented before modern computer ​

Answer 1

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There is a long history detailing the invention of computing and calculating machines. The earliest recordedcalculating device is the abacus. Used as a simple computing device for performing arithmetic, the abacus most likely appeared first in Babylonia (now Iraq) over 5000 years ago.

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Answer 2

The three calculating devices invented before modern computer we're

1)Abacus

2)Napier's Bones

3)Slide Rule

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