Which component moves the read/write heads across the disk surface?

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Multiple Choice

Which component moves the read/write heads across the disk surface?

Explanation:
The actuator is the component that moves the read/write heads across the disk surface. It drives the precision motion of the read/write arm (often via a voice coil motor), sliding the heads to the correct radial position on each platter. The spindle only spins the platters, while the control circuit board handles electronics and commands. So the actual head-positioning movement comes from the actuator.

The actuator is the component that moves the read/write heads across the disk surface. It drives the precision motion of the read/write arm (often via a voice coil motor), sliding the heads to the correct radial position on each platter. The spindle only spins the platters, while the control circuit board handles electronics and commands. So the actual head-positioning movement comes from the actuator.

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