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GATE | GATE CS 2008 | Question 31

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  • Last Updated : 28 Jun, 2021
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For a magnetic disk with concentric circular tracks, the seek latency is not linearly proportional to the seek distance due to
(A) non-uniform distribution of requests
(B) arm starting and stopping inertia
(C) higher capacity of tracks on the periphery of the platter
(D) use of unfair arm scheduling policies

Answer: (B)

Explanation: Whenever head moves from one track to other then its speed and direction changes, which is noting but change in motion or the case of inertia. So answer B

This explanation has been contributed by Abhishek Kumar.

See Disk drive performance characteristics_Seek_time

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