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#1 modi123_1   User is online

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[link] Solid-state revolution: in-depth on how SSDs really work

Posted 06 June 2012 - 09:20 AM


Who *DOESNT* love reading about how stuff works? The article needs about twenty percent more sepia toned mammoths though..


Solid-state drives are odd creatures. Though they sound simple in theory, they store some surprisingly complex secrets. For instance, compare an SSD to a traditional magnetic hard drive. A modern multi-terabyte spinning hard disk plays tricks with magnetism and quantum mechanics, results of decades of research and billions of dollars and multiple Nobel Prizes in physics. The drives contain complex moving parts manufactured to extremely tight tolerances, with drive heads moving around just thousandths of a millimeter above platters rotating at thousands of revolutions per minute. A modern solid-state drive performs much more quickly, but it's also a more mundane on the inside, as it's really a hard drive-shaped bundle of NAND flash memory. Simple, right?

However, the controller software powering an SSD does some remarkable things, and that little hard drive-shaped bundle of memory is more correctly viewed as a computer in its own right.

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