An interrupt driven IO is used:
2017
An interrupt driven IO is used:
- A.
to handle synchronous input-outputs
- B.
as interrupt service routine executes fast
- C.
because the events are asynchronous and during the interval for wait for data the processor can perform other tasks
- D.
because the events are synchronous and processor can simultaneously perform other tasks
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Correct answer: C
Interrupt-driven I/O is useful for asynchronous events because the processor can do other work while waiting for the device.