What is the purpose of the control bus? MCQ with Answer and Explanation

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What is the purpose of the control bus?

A. Transfers control signals

B. Transfers power

C. Transfers data

D. Transfers addresses

Answer: Option A

Solution (By JKSSB Mock Tests)

The control bus carries control signals (e.g., read/write) from the CPU to other components.

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Practice More Computer Fundamentals Questions

Question #1

Which type of computer is the most powerful and expensive?

A. Supercomputer

B. Minicomputer

C. Microcomputer

D. Mainframe computer

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Correct Answer: Option A

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

This question belongs to: Computer Computer Fundamentals

Question #2

Which historical mechanical device featured a grid of sliding beads on wires and was split into a top section ('Heaven') and a bottom section ('Earth')?

A. Napier's Bones

B. Abacus

C. Pascaline

D. Slide Rule

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Correct Answer: Option B

Explanation:
Traditional Chinese abacuses (Suanpan) feature a structural upper deck ('Heaven') and a lower deck ('Earth') for positional base-5 arithmetic.

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Question #3

Which of the following is not a type of computer?

A. Mechanical

B. Digital

C. Hybrid

D. Analog

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Correct Answer: Option A

Explanation:
Mechanical computers are historical; modern classification includes analog, digital, and hybrid.

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