McqMate
Q. |
If the number of cycles spent busy – waiting is not excessive, then |
A. | interrupt driven i/o is more efficient than programmed i/o |
B. | programmed i/o is more efficient than interrupt driven i/o |
C. | both programmed and interrupt driven i/o are equally efficient |
D. | none of the mentioned |
Answer» B. programmed i/o is more efficient than interrupt driven i/o |
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