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consider a hard disk device with 6 0 0 cylinder [ 0 - 5 9 9 ] for the questions . if the head initially

consider a hard disk device with 600 cylinder [0-599] for the questions .if the head initially serves a request cylinder number 436 and receives the l/O disk request shown below
Assume that once l/O disk requests and serviced, the will not make any other movement . when
having a tie FCFS . l/O disk request: {308,96,109,550,430,95,12,559,425,131}
a)if using first come serve (FCFS) scheduling algorithm ,what is total head movement cost (is cylinder)?
b)if using shortest seek time first (SSTF),what is total head movement cost is (is cylinder)?
c)if using SCAN scheduling algorithm (Moving to the left direction, towards lower cylinder numbers),what is total head movement cost (is cylinder)?
d)if using LOOK scheduling algorithm (Moving to the left direction, towards lower cylinder numbers),what is total head movement cost (is cylinder)?

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