COMPUTER HARDWARE
STORAGE DEVICES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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actuator arm
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conductor
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write project
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read/write head
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Detailed explanation-1: -The hard drive contains a spinning platter with a thin magnetic coating. A “head” moves over the platter, writing 0’s and 1’s as tiny areas of magnetic North or South on the platter. To read the data back, the head goes to the same spot, notices the North and South spots flying by, and so deduces the stored 0’s and 1’s.
Detailed explanation-2: -Hard drive heads are the most sensitive part of the device. They are responsible for all virtues of modern HDDs, such as read/write speed. However, issues with their functionality represent one of the most common HDD failures. HDD heads movement is electronically controlled.
Detailed explanation-3: -There are two read-write heads for each platter, one to read the top surface and one to read the bottom, so a hard drive that has five platters (say) would need ten separate read-write heads.