Multiple choice

What is a system interrupt?

  1. A device requests the processor's immediate attention

  2. The CPU asks the device if there has been an update

  3. The process by which a CPU prioritises applications

  4. The current CPU instruction is dropped to process new data
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A Correct answer
Explanation

A system interrupt is a signal sent to the processor by hardware or software indicating that an event needs immediate attention. This causes the CPU to temporarily pause its current task to handle the request.

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