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To which command the ALU of computer responds?

  • A.Command coming from external memory
  • B.Command coming from control section
  • C.Command coming from cache memory

  • D.Command coming from primary memory

Answer: B

Correct answer: Command coming from control section

The ALU does nothing on its own: it performs an operation when the control unit selects it and enables the registers holding the operands. Memory supplies data, not commands.

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