Which of the following is considered the basic function of a computer? MCQ with Answer and Explanation

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Which of the following is considered the basic function of a computer?

A. Communication

B. Data processing

C. Entertainment

D. Power supply

Answer: Option B

Solution (By JKSSB Mock Tests)

The fundamental function of a computer is data processing, which includes input, processing, output, and storage.

This question belongs to: Computer Computer Fundamentals

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Question #1

What is the octal equivalent of decimal 100?

A. 147

B. 146

C. 145

D. 144

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Correct Answer: Option D

Explanation:
100 decimal = 144 octal (1*64 + 4*8 + 4 = 100).

This question belongs to: Computer Computer Fundamentals

Question #2

The internal storage unit that holds data, instructions, and intermediate results during active execution inside the computer is the:

A. Auxiliary Storage

B. Primary Memory

C. Control Memory

D. Secondary Memory

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Correct Answer: Option B

Explanation:
Primary Memory (RAM) holds data, programs, and intermediate computation states while they are actively being processed by the CPU.

This question belongs to: Computer Computer Fundamentals

Question #3

Which of the following is an example of a microcomputer?

A. Apple MacBook

B. Cray supercomputer

C. IBM z/OS mainframe

D. PDP-11 minicomputer

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Correct Answer: Option A

Explanation:
Microcomputers include personal computers like laptops, desktops, and tablets.

This question belongs to: Computer Computer Fundamentals

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