The CPU can request data from an I/O controller, one byte...
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The CPU can request data from an I/O controller, one byte...

Ano: 2018
Banca: Instituto AOCP
Prova: Instituto AOCP - PRODEB - Analista de TIC I - Área Back Up - 2018

The CPU can request data from an I/O controller, one byte at a time, but by doing so, it wastes a large chunk of the CPU. Another way of accomplishing the same work without this waste is:

A

By using a direct processor access without using any memory.

B

By using an operating system interrupt control.

C

By using a direct memory access, but only if the hardware has this controller.

D

By using the operating system scheduler.

E

By using the cache memory.

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