Bill Hammack, also known as the “Engineer Guy,” is back, and this time, he opens up a computer to see how a hard drive is engineered. As with many things he tears down, the level of sophistication is incredible, like the small tolerances between the head, which reads and writes data, and the platter of the hard drive itself. As with many things engineering, some mathematics allows manufacturers to pack more information into the same amount of space.
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