21595Re: Found some Core Memory
- Jun 5, 2011
> I would expect anything from IBM to say I B M on it somewhere.The core I salvaged from the IBM 1620 and IBM 1130
were merely green frames that stacked together.
No "IBM" anywhere.
Even back then, IBM outsourced SOME things.
The IBM system 1130's plotter is from Calcomp
and the paper tape reader from Tally.
The semiconductor RAM on the IBM system 38 is from EMM.
> In those days, IBM made everything themselves,I wish I could find photos from the IBM Kingston facility's
Historical Society. It showed a HUGE foot-locker sized
core memory module for the IBM 360,
with photos of all the steps of manufacturing, weaving
and even re-weaving to replace a failed core!
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