What is the octal equivalent of decimal 20? MCQ with Answer and Explanation

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What is the octal equivalent of decimal 20?

A. 23

B. 25

C. 26

D. 24

Answer: Option D

Solution (By JKExamLibrary)

20 decimal = 24 octal (2*8 + 4 = 20).

This question belongs to: Computer Computer Fundamentals

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Question #1 Report Error

What is the significance of von Neumann architecture?

A. It uses a single memory for both data and instructions

B. It is used only in mainframes

C. It uses separate memory for data and instructions

D. It eliminates the need for CPU

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Correct Answer: Option A

Explanation:
The von Neumann architecture uses a single shared memory for both data and instructions, which is the basis for most modern computers.

This question belongs to: Computer Computer Fundamentals

Question #2 Report Error

What is the octal equivalent of decimal 50?

A. 62

B. 63

C. 65

D. 64

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Correct Answer: Option A

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

This question belongs to: Computer Computer Fundamentals

Question #3 Report Error

Which type of computer is the most powerful and expensive?

A. Minicomputer

B. Mainframe computer

C. Microcomputer

D. Supercomputer

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Correct Answer: Option D

Explanation:
Supercomputers are the fastest, most powerful, and most expensive computers, used for complex scientific computations.

This question belongs to: Computer Computer Fundamentals

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