I thought the schematics and labeled photos of the hard drives in the presentation were very informative. I really didn’t know how hard drives worked until Tuesday’s class and I think using pictures was the best way to go about it since the terminology for all of the different parts is a little odd. I’m curious to know why the individual who invented the hard drive called the disk space a “platter.” It seems to be more of a culinary rather than a mechanical term.
The concept of RAID (redundant array of independent/inexpensive disks) has me a little confused. I am not clear on how this exactly works. Is more than one disk drive recording the same thing at the same time? Are the drives different physical objects or are they virtual drives? Finally, what are the differences between RAID 0, 1, and 5?
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