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

Which architecture is dominant in personal computers?

A. Only ARM

B. MIPS only

C. x86 / x86-64

D. PowerPC exclusively

Answer: Option C

Used by Intel and AMD for PCs.

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

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Question #1 Report Error

The prefetcher in CPU:

A. Manages power

B. Anticipates and loads data into cache

C. Performs ALU ops

D. Decodes instructions

Correct Answer: Option B

Explanation:
Reduces latency by proactive fetching.

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

Question #2 Report Error

Registers are faster than:

A. All of the above

B. Cache memory

C. RAM

D. Hard disk

Correct Answer: Option A

Explanation:
Registers are the fastest storage in the computer hierarchy, located inside the CPU.

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

Question #3 Report Error

The accumulator is often used in:

A. No operations

B. Implicit addressing

C. All operations equally

D. Memory management

Correct Answer: Option B

Explanation:
Many instructions implicitly use the accumulator.

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