Gate 2005 pyq CAO | Consider a disk drive with the following specifications:16 surfaces, 512 tracks
Автор: Gate CS pyqs - the other way[Hin]
Загружено: 2022-05-24
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Описание:
Consider a disk drive with the following specifications:
16 surfaces, 512 tracks/surface, 512 sectors/track, 1 KB/sector, rotation speed 3000 rpm. The disk is operated in cycle stealing mode whereby whenever one 4 byte word is ready it is sent to memory; similarly, for writing, the disk interface reads a 4 byte word from the memory in each DMA cycle. Memory cycle time is 40 nsec. The maximum percentage of time that the CPU gets blocked during DMA operation is:
(A)10
(B)25
(C)40
(D)50
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