Typically, at the completion of a device I/O, a single interrupt is raisedand

Chapter 13, Problem 13.14

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Typically, at the completion of a device I/O, a single interrupt is raisedand appropriately handled by the host processor. In certain settings,however, the code that is to be executed at the completion of theI/O can be broken into two separate pieces. The first piece executesimmediately after the I/O completes and schedules a second interruptfor the remaining piece of code to be executed at a later time. What isthe purpose of using this strategy in the design of interrupt handlers?

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