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A device that uses positional notation to represent a decimal number.

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A device that uses positional notation to represent a decimal number.

(a) Abacus

(b) Calculator

(c) Pascaline

(d) Computer

I have been asked this question during an interview for a job.

My doubt is from Positional & Non-Positional Number System topic in chapter Number Systems of Computer Fundamentals

1 Answer

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Correct choice is (a) Abacus

The explanation: Abacus was used to doing arithmetic calculations around 2500 years ago. Pascaline was the pascal’s calculator by Blaise Pascal invented for doing laborious calculations.

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