suppose that a disk drive has 200 tracks, numbered 0 to 199. The drive is currently serving a request at track 50, and the previous request was at track 20. The queue of pending requests, in FIFO...

suppose that a disk drive has 200 tracks, numbered 0 to 199. The drive is currently serving a request at track 50, and the previous request was at track 20. The queue of pending requests, in FIFO order is, 95, 180, 34,119,11,123,62,64. Starting from the current head position, what is the total distance (in tracks) that the disk arm moves to satisfy all the pending requests, for each of the following disk scheduling algorithms? a. FCFS: b. SSTF