Question

WHAT IS CALCULATOR?
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Answer 1

A calculator is a machine which allows people to do math operations more easily. ... Calculators are found everywhere. A smartphone or other computer can also act as a calculator. Some calculators, like the abacus, will work without batteries. Others, like the electronic calculator, require batteries.

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Answer 2

something used for making mathematical calculations, in particular a small electronic device with a keyboard and a visual display

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