26 May
2005
26 May
'05
9:19 a.m.
On Thu, 26 May 2005, Paul Koning wrote:
Al> Or magnetic drums, which did NOT have the
access time problems of
Al> tape or cards (but, unfortunately weren't an IBM invention)
Did the drum come before RAMAC?
Yes. Many years (I believe about six).
An obvious difference is that drums, being head per
track devices,
always had rather low capacity.
And disks are much more efficient than drums anyway.
--
Sellam Ismail Vintage Computer Festival
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