Which unit decodes machine instructions? MCQ with Answer and Explanation

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Which unit decodes machine instructions?

A. CU

B. I/O Controller

C. Memory

D. ALU

Answer: Option A

Solution (By JKSSB Mock Tests)

The Control Unit handles instruction decoding.

This question belongs to: Computer CPU (Central Processing Unit)

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Question #1

Future CPU trends include more:

A. General purpose only

B. Analog computing

C. Reduced specialization

D. Domain specific accelerators

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Correct Answer: Option D

Explanation:
For AI, graphics, etc.

This question belongs to: Computer CPU (Central Processing Unit)

Question #2

A CPU with integrated graphics has:

A. Only CPU functions

B. No display capability

C. GPU on the same die

D. Separate GPU

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Correct Answer: Option C

Explanation:
APUs or processors with iGPU combine CPU and graphics.

This question belongs to: Computer CPU (Central Processing Unit)

Question #3

Virtualization support in CPU includes instructions for:

A. Efficient VM management

B. Graphics only

C. Storage encryption

D. Audio processing

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Correct Answer: Option A

Explanation:
Extensions like Intel VT-x or AMD-V.

This question belongs to: Computer CPU (Central Processing Unit)

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