Question: A CPU with interrupt - driven I / 0 is busy servicing a disk request. While the CPU is midway through the disk - service

A CPU with interrupt-driven I/0 is busy servicing a disk request. While the CPU is midway through the disk-service routine, another I/O interrupt occurs.
a. What happens next?
b. Is it a problem?
c. If not, why not? If so, what can be done about it?
A CPU with interrupt-driven I/0 is busy servicing a disk request.

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