Computer Architecture Quiz - 1

The Control Unit is responsible for fetching, decoding, and executing instructions.

• True

• False

Which component performs arithmetic and logic operations?

• Control Unit

• Memory Unit

• ALU

• I/O Unit

Which is the correct sequence of an instruction cycle?

• Fetch → Execute → Decode

• Fetch → Decode → Execute

• Decode → Fetch → Execute

• Execute → Decode → Fetch

A memory reference instruction may involve reading or writing data from memory.

• True

• False

The main purpose of I/O interruption is to:

• Speed up memory access

• Signal the CPU for attention

• Increase cache size

• Execute multiple instructions at once

In a full subtractor circuit, how many inputs are there?

• 1

• 2

• 3

• 4

Booth’s algorithm can handle both positive and negative numbers in multiplication.

• True

• False

Pipelining improves:

• Clock speed

• Instruction throughput

• Instruction latency

• Cache hit rate

Control hazards occur mainly due to:

• Arithmetic overflow

• Branch instructions

• Slow memory

• Cache misses

Caches are used to reduce the average time to access data from main memory.

• True

• False