The ALU of a computer responds to commands from the:
2019
The ALU of a computer responds to commands from the:
- A.
Primary memory
- B.
Control Unit
- C.
External memory
- D.
Cache memory
- E.
Input device
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Show answer & explanation
Correct answer: B
Correct answer: Control Unit.
The ALU performs arithmetic and logical operations, but it acts according to control signals. The Control Unit fetches and decodes instructions, then sends commands or control signals to the ALU and other CPU components.
Memory and input devices store or supply data; they do not directly command the ALU.