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Operating System Disk Scheduling 2

Q Consider a disk queue with requests for I/O to blocks on cylinders. 98 183 37 122 14 124 65 67 Considering FCFS (first cum first served) scheduling, the total number of head movements is, if the disk head is initially at 53 is?

A A. 600
B B. 620
C C. 630
D D. 640

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