Question

which was the first manual calculation device
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Answer 1

Explanation:

• There is a long history detailing the invention of computing and calculating machines. The earliest recorded calculating 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.

Answer 2

Answer:

abacus

Explanation:

It's so easy

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