Which architecture is dominant in personal computers? MCQ with Answer and Explanation

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Which architecture is dominant in personal computers?

A. PowerPC exclusively

B. x86 / x86-64

C. Only ARM

D. MIPS only

Answer: Option B

Solution (By JKSSB Mock Tests)

Used by Intel and AMD for PCs.

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

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Question #1

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The front-end pipeline bottleneck often involves:

A. Retirement stage

B. Instruction fetch and decode bandwidth

C. Execution units

D. Memory writes

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Correct Answer: Option B

Explanation:
It limits instruction supply.

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

Question #2

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The Program Status Word (PSW) contains:

A. Memory map

B. Data operands

C. Condition codes and status information

D. Instruction address only

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Correct Answer: Option C

Explanation:
It holds processor state.

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

Question #3

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Flag register is also called:

A. Accumulator

B. Status Register or EFLAGS

C. Stack Pointer

D. Program Counter

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Correct Answer: Option B

Explanation:
Contains condition codes.

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

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