What is the function of the read/write head in a hard disk?
A. To read and write data magnetically on the platter
B. To rotate the platter
C. To store data on the platter
D. To move the actuator arm
Answer: Option A
Solution (By JKSSB Mock Tests)
The read/write head contains electromagnetic coils that read data by sensing magnetic fields and write data by changing the magnetic polarity on the platter surface.
Explanation:
The read/write head is the component that reads data from and writes data to the platters. The actuator arm moves the head, and the spindle rotates the platters.
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