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consider disk with 500 tracks is currently on track no 60...

FInd total head movements to satisfy  request using SSTF

Request:170,37,98,122,53,14,39,28

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14  28  37  39  53   Head at 60  98     122  170

 The path followed is  60 - > 53 -> 39 -> 37 -> 28 -> 14 -> 98 -> 122 -> 170 .

The movements are  :     7 +  14  +    2     +  9  +  14 +    84 +  24  +  48  = 202 movements.
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