paulkoning at comcast.net
Sun Aug 30 14:15:09 CDT 2015
> On Aug 30, 2015, at 2:34 PM, Chuck Guzis <cclist at sydex.com> wrote:
> I have heard of machine-fabricated core as well, but I thought that it only applied to larger, slower bulk core store. One can certainly understand why plated-wire or thin-film technologies were attractive.
Perhaps CDC's ECS? 125k (funny number that) words per memory bank.
> Sigh. Another lost manual art. I can remember during the 70s that the hot thing was to learn IC layout--the wives of a number of co-workers were going to night courses for that.
I've never done that, though I have Carver Mead's textbook that describes how it is done. I did do a PC board layout with red and blue tape on a light table, in 1977.
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