Forrester was my freshman adviser. A remarkably nice person. For those of us who weren't going home for Thanksgiving, he invited us to his home. Well above the call of duty. It's my understanding that his patent wasn't anywhere near the biggest moneymaker. A patent for the production of penicillin was, as I understood, the biggie.

On Fri, Jun 15, 2018 at 9:08 PM, Greg 'groggy' Lehey <grog@lemis.com> wrote:

On Friday, 15 June 2018 at 10:21:44 -0400, Clem Cole wrote:
> On Fri, Jun 15, 2018 at 7:19 AM, A. P. Garcia <a.phillip.garcia@gmail.com>
> wrote:
>
>> jay forrester first described an invention called core memory in a lab
>> notebook 69 years ago today.
>>
> ???Be careful -- Forrester named it and put it into an array and build a
> random access memory with it, but An Wang invented and patented basic
> technology we now call 'core' in 1955 2,708,722
> <https://patents.google.com/patent/US2708722A/en> (calling it `dynamic
> memory')???.

Tha patent may date from 1955, but by that time it was already in use.
Whirlwind I used it in 1949, and the IBM 704 (1954) used it for main
memory. There are some interesting photos at
https://en.wikipedia.org/wiki/Magnetic-core_memory.

Greg
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