> On Aug 30, 2015, at 2:34 PM, Chuck Guzis <[email protected]> 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.
paul
