You hear people talk about them. You read specs when you buy a computer. You may have seen one. You may have actually installed one. They are both the bane and blessing of computing, but what are they and how do they work? I bet you thought they were full of gears and magic pixy dust! The hard disk drive was invented by IBM in the mid 1950s with an amazing capacity of 5 megabytes on it’s 24...
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