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Mr. Dubey • 100.69K Points
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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
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