What is the primary function of the input unit in any digital computer architecture? MCQ with Answer and Explanation

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What is the primary function of the input unit in any digital computer architecture?

A. To run complex mathematical operations.

B. To store processed records permanently.

C. To display the visual results of calculations.

D. To convert human-readable input data into machine-understandable binary format.

Answer: Option D

Solution (By JKExamLibrary)

The input unit captures external data from the real world and translates it into digital signals (binary) that the CPU can execute.

This question belongs to: Computer Computer Fundamentals

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Question #1 Report Error

What is the binary equivalent of decimal 15?

A. 1011

B. 1111

C. 1101

D. 1110

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Correct Answer: Option B

Explanation:
15 = 8+4+2+1 = 1111.

This question belongs to: Computer Computer Fundamentals

Question #2 Report Error

What is the octal equivalent of binary 110?

A. 7

B. 4

C. 6

D. 5

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Correct Answer: Option C

Explanation:
110 binary = 6 decimal = 6 octal.

This question belongs to: Computer Computer Fundamentals

Question #3 Report Error

Which of the following is a characteristic of fourth-generation computers?

A. Used large-scale integration

B. Used magnetic tapes

C. Used transistors

D. Used vacuum tubes

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Correct Answer: Option A

Explanation:
Fourth-generation computers used LSI (Large Scale Integration) and VLSI chips, leading to microprocessors.

This question belongs to: Computer Computer Fundamentals

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