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The heads of the magnetic disk are attached to a _____ that moves all the heads as a unit.

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The heads of the magnetic disk are attached to a _____ that moves all the heads as a unit.

(a) spindle

(b) disk arm

(c) track

(d) none of the mentioned

I have been asked this question in semester exam.

This intriguing question comes from Disk Scheduling in portion Mass-Storage Structures of Operating System

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Right choice is (b) disk arm

The explanation is: None.

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