what does the control unit generate to control other units

The control unit controls other units by generating control signals (often including timing signals) that tell each component what to do and when to do it.

These control signals:

• Direct the ALU which operation to perform.

• Coordinate data movement between registers, memory, and I/O devices.

• Synchronize operations in the CPU using timing signals or clocked sequences.

In many exam-style questions, the expected one‑phrase answer to “What does the control unit generate to control other units?” is:

Control signals (timing and control signals).

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