Suppose a disk drive has 200 cylinders, numbered from 0 to 199. The drive is initially at cylinder 5C. The queue has requests from I/O to blocks on cylinders.
A. If a request is made to access cylinder 87, how many cylinders will the drive need to move in order to fulfill this request?
B. If the next request is to access cylinder 156, how many cylinders will the drive need to move this time?
C. If the drive then needs to access cylinder 23, how many cylinders will it need to move for this request?
Equation 1: Number of cylinders moved = Absolute value of
(Current cylinder - Requested cylinder)
Equation 2: Total cylinders moved = Sum of all individual cylinder movements
Please provide the solution to these equations.