Question

explain any two device used during ancient time for doing calculation?​

Answer 1

Explanation:

Used as a simple computing device for performing arithmetic, the abacus most likely appeared first in Babylonia (now Iraq) over 5000 years ago. ... The abacus is more of a counting device than a true calculator. (See Figure 1.) Nonetheless, it was used for centuries as a reliable means for doing additions and subtractions

Answer 2

Used as a simple computing device for performing arithmetic, the abacus most likely appeared first in Babylonia (now Iraq) over 5000 years ago. ... The abacus is more of a counting device than a true calculator. (See Figure 1.) Nonetheless, it was used for centuries as a reliable means for doing additions and subtractions.

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