Which memory is directly accessible by the CPU? MCQ with Answer and Explanation

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Which memory is directly accessible by the CPU?

A. Hard disk

B. RAM

C. USB drive

D. CD-ROM

Answer: Option B

Solution (By JKSSB Mock Tests)

RAM is directly accessible by the CPU for reading and writing data during processing.

This question belongs to: Computer Computer Fundamentals

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Question #1

What is the octal equivalent of decimal 50?

A. 62

B. 65

C. 64

D. 63

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Correct Answer: Option A

Explanation:
50 = 6*8 + 2 = 62 octal.

This question belongs to: Computer Computer Fundamentals

Question #2

What is the octal equivalent of binary 110?

A. 6

B. 5

C. 7

D. 4

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Correct Answer: Option A

Explanation:
110 binary = 6 decimal = 6 octal.

This question belongs to: Computer Computer Fundamentals

Question #3

Which component acts as the 'brain' of the computer system, housing the circuitry that executes all primary logical and arithmetic procedures?

A. Hard Disk Drive

B. Motherboard Bus

C. Central Processing Unit

D. Random Access Memory

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Correct Answer: Option C

Explanation:
The Central Processing Unit (CPU) is known as the brain because it interprets instructions, handles calculations, and runs operations.

This question belongs to: Computer Computer Fundamentals

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