When did Memory- and IO Protection Emerge (Esp. in Minis)?

Dale H. Cook radiotest at juno.com
Tue May 3 13:17:09 CDT 2016

At 01:34 PM 5/3/2016, Toby Thain wrote:

>Great book, that repeatedly shows how many ideas we think of as "modern" are actually quite old. :)

An example - the first dynamically refreshed capacitive memory system of which I am aware dated from 1939. It was not RAM, as it was a rotating drum.

Dale H. Cook, Roanoke/Lynchburg, VA
Osborne 1 / Kaypro 4-84 / Kaypro 1 / Amstrad PPC-640

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