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What is an interrupt signal used for in a computer?

Answer and explanation

Correct answer: To draw the processor's attention to an important event or device request

The governing concept is interrupt-driven processing. An interrupt is a signal from hardware or software telling the processor that an event needs service, such as input arrival, a timer event, or an I/O operation finishing. The processor can pause its current work, run the appropriate service routine, and then continue. Option A is correct. The other choices describe neither notification nor processor event handling.

Related tags

IctInterruptCpuInput OutputBasic Computer Operations (Hardware And Software)Basic Computer Operations Hardware And SoftwareIct (Information & Communication Technology) Skills IIct Information Communication Technology Skills I

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