27 May
2005
27 May
'05
12:01 p.m.
Some disks had parallel heads too -- the CDC 6638 is
12 bits
parallel.
I'd even say that _most_ disks have parallel heads, though they
generally throw away that parallelism. (I don't know why; the most
plausible reason that comes to mind is a "buh-but that's not how disks
work" mindset.)
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