Drum vs. Core
cc at corti-net.de
Fri Jun 29 04:20:36 CDT 2007
On Fri, 29 Jun 2007, Jules Richardson wrote:
> Hmm, I stand corrected :) The big 50's and 60's machines this side of the
> pond always seemed to come with core as the main memory; drum stores weren't
> uncommon, but only as 'off-line' storage. Even the smaller desk-sized stuff
> (BCL Susie etc.) were as far as I'm aware  core machines.
The big 50s machines were mostly drum/disk based as core memory wasn't
available. See IBM 650, Zuse Z22, Ferranti Pegasus etc.
>  We've got a couple to pick up at some point, both with drums - but
> without getting hold of the hardware and manuals knowledge about BCL
> equipment is pretty thin on the ground!
Old, especially desk-sized drum computers are quite easy to understand if
you spend some time investigating [I know that of experience with our
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