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Consider a disk with 2 5 6 cylinders, indexed from 0 to 2 5 5 , with 0 being the innermost and 2 5 5
Consider a disk with cylinders, indexed from to with being the innermost and being
the outermost cylinder. The system receives disk requests on the following tracks in the specified order
The head is currently on cylinder and is moving towards outer cylinder. The head requires a total of ms
to move from innermost to outermost track. Give the time required to service the given requests using each of
the following algorithms.
a FCFS scheduling
b SSTF scheduling
c SCAN scheduling
d CSCAN scheduling, servicing requests as head moves outwards
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