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On the occasion of hard disks reaching a new cost/byte milestone, Ars takes a look back at what’s wrong (and right) with the venerable hard disk drive, and glances ahead to what’s next.
While capacities, fill times, and bandwidth have changed, latencies have, however, remained relatively static. Hard disks still use rotating platters with magnetic pits, and spin latencies can only decrease with increases in rotational speed….










