James E. Henderson wrote:
>..  
> In 1963, when I was sent to St. Paul, Minnesota, for classes in
> repairing the military computers we were going to use on board
> submarines, I got a tour of the Univac factory there and got to watch
> the cores being manufactured. Sometimes those microscopic little ferrite
> cores would break. Then the machine had to be unwired part of the way, a
> new core inserted and the wiring re-done. Errors were frequent but when
> they were done they were sealed up so nobody would have to look at the
> core wiring again. It was tedious, painstaking work with constant
> testing, work that only human hands could do. That's why memory was
> expensive.

I wonder why Minnesota was the location for computer manufacturing.
Wasn't Control Data in Minneapolis? And what else? Maybe Cray -- didn't
he originate in CDC?

Regards,
..jim


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