What is the function of the spindle motor in a hard disk?
A. To control the read/write head
B. To rotate the platters
C. To hold the disk in place
D. To move the actuator arm
Answer: Option B
Solution (By JKSSB Mock Tests)
The spindle motor rotates the platters at a constant speed (e.g., 5400 or 7200 RPM), allowing the read/write heads to access data on the rotating surface.
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