A control unit must coordinate register loading, ALU operation, and memory access during an instruction. What determines when these micro-operations occur?

Options

  • A. Only the data stored in the accumulator
  • B. Control signals coordinated with timing
  • C. The monitor refresh rate
  • D. The size of the hard disk
  • E. None of the above

Correct Answer (Detailed Explanation is Below)

B. Control signals coordinated with timing

Detailed Explanation

Explanation: The CU coordinates control signals and timing so that micro-operations occur in the correct sequence. Clock timing and the processor design help synchronize operations such as register transfers, ALU execution, and memory access.
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BPSC TRE 4 operating system practice set 3

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