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A disk takes 1ms per track seek time, and the head is currently on track 70. Assume it takes 5 ms to service a request once the head is at the right track. The following stream of requests arrive, given as (ID, arrival time in ms, track). When is the last request finished if the Elevator algorithm is used and the current direction is down? Requests: (A,0,80)(B,4,75)(C,12,82)(D,20,90)( E,32,45)

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A disk takes 1ms per track seek time, and the head is currently on track 70. Assume it takes 5 ms to...

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