Question: operating system 41. Disk requests come in to the disk driver for cylinders 10, 22, 20, 2,40, 6, and 38, in that order. The arm

operating system operating system 41. Disk requests come in to the disk driver

41. Disk requests come in to the disk driver for cylinders 10, 22, 20, 2,40, 6, and 38, in that order. The arm is initially at cylinder 20. A seek takes 6 msec per cylinder. How much seek. time is needed for FCFS? (show your work) 42. A disk rotates at 7200 RPM. It has 500 sectors of $12 bytes around the outer cyinder. How long does it take to read a sector? (show your work)

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