What is the binary equivalent of hexadecimal F? MCQ with Answer and Explanation

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What is the binary equivalent of hexadecimal F?

A. 1101

B. 1111

C. 1110

D. 1011

Answer: Option B

Solution (By JKSSB Mock Tests)

F hex = 15 decimal = 1111 binary.

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Question #1

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Which component is known as the temporary memory of a computer?

A. RAM

B. Hard disk

C. ROM

D. SSD

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Correct Answer: Option A

Explanation:
RAM is temporary (volatile) storage used during processing.

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Question #2

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Which of the following is not a type of computer based on size and power?

A. Analog computer

B. Supercomputer

C. Microcomputer

D. Minicomputer

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Correct Answer: Option A

Explanation:
Analog computers are classified by their operational principle (continuous vs. discrete), not size/power.

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Question #3

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What mechanical calculation machine did Gottfried Leibniz improve upon to create the 'Step Reckoner', capable of performing multiplication and division automatically?

A. Abacus

B. Jacquard Loom

C. Analytical Engine

D. Pascaline

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Correct Answer: Option D

Explanation:
Leibniz expanded the design of Pascal’s calculator (the Pascaline) by adding a stepped cylinder mechanism to allow automated multiplication.

This question belongs to: Computer Computer Fundamentals

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