> On Oct 27, 2017, at 3:21 PM, Al Kossow via cctalk <cctalk@classiccmp.org>
> wrote:
>
>
>
> On 10/27/17 12:16 PM, Chuck Guzis via cctalk wrote:
>
>> I've long had a fantasy about building a core-logic CPU such as the
>> Univac Solid State.
>
> I have been told the behavior of Univac magnetic logic was similar to NMOS
That doesn't sound even close.
Ken Olsen did his thesis on magnetic core logic. There is some (but
surprisingly little) information on line about this technology. There are two
flavors: with permanent magnetic cores (memory cores) and with "soft" cores
(transformers). Apollo "rope" core memory ROM is an example of the former.
paul
