Hard drive teardown – YouTube

Bill opens up a computer hard drive to show how it is engineered. He describes how the “head” reads the magnetic information on the disk; reveals how a voice…

Source: www.youtube.com

The head must be able to accurately seek a magnetic region that is just a few nanometers wide while the disk spins at thousands of revolutions per minute. That certainly could not be done with a normal motor — and in fact, hard drive heads are moved with a voice coil actuator, much in the same way that a cone in a speaker is moved to make sound…

See on Scoop.it#Communication

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