Hand-wired core for ROM?

Sean Caron scaron at umich.edu
Fri Apr 10 16:04:54 CDT 2015

The paternal side of my family is from the southern Minnesota area and my
dad has told me on more than one occasion that my grandmother for a time
had a job working for Control Data "sewing" core memory by hand... This
would probably have been some time in the 1960s... Obviously I can't verify
the veracity of this firsthand :O but it's been said at least of that stuff
was assembled by hand by human beings, in the US...

Not sure about the core you'll find in your common PDP-11... By that time,
the work might have totally gone overseas?



On Fri, Apr 10, 2015 at 4:58 PM, Paul Anderson <useddec at gmail.com> wrote:

> I have several DEC (PDP8) ones downstairs. I'll try to got the part numbers
> tonight and post them. They might have been used in the PDP14, but I doubt
> it. They were definitely not wired in the field.
> Paul
> On Fri, Apr 10, 2015 at 9:38 AM, geneb <geneb at deltasoft.com> wrote:
> > Did the PDP14 (or any machine of that era) ever use hand-threaded (by the
> > end user) core boards as ROM?
> >
> > tnx.
> >
> > g.
> >
> >
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