Which early calculating aid invented by John Napier used a set of numbered ivory rods to simplify complex multiplication and division tasks? MCQ with Answer and Explanation

Question

Which early calculating aid invented by John Napier used a set of numbered ivory rods to simplify complex multiplication and division tasks?

A. Slide Rule

B. Napier's Bones

C. Pascaline

D. Abacus

Answer: Option B

Solution (By JKSSB Mock Tests)

John Napier invented 'Napier's Bones' in 1917, using carved rods to convert multiplication problems into simple addition steps.

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Question #1

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What is the basic unit of data in a computer?

A. Word

B. Byte

C. Nibble

D. Bit

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Correct Answer: Option D

Explanation:
The bit (binary digit) is the smallest unit of data in a computer, representing a 0 or 1.

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Question #2

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Which property describes why a computer does not experience psychological boredom or drop in performance when running the same code billions of times?

A. Accuracy

B. Diligence

C. Speed

D. Versatility

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Correct Answer: Option B

Explanation:
Diligence ensures that electronic processors maintain uniform operational performance and speed without experiencing exhaustion.

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Question #3

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What is the binary equivalent of decimal 50?

A. 111010

B. 101010

C. 110010

D. 100110

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Correct Answer: Option C

Explanation:
50 = 32+16+2 = 110010 binary.

This question belongs to: Computer Computer Fundamentals

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