On 5/24/20 1:04 PM, Toby Thain via cctalk wrote:
On 2020-05-24 11:17 AM, Bill Gunshannon via cctalk wrote:... IBM was doing Virtualization in the 70's.1968 and probably before.[1] Most operating systems concepts[2] are much older than people think. --T [1] https://en.wikipedia.org/wiki/History_of_CP/CMS [2] e.g. ref: Per Brinch Hansen, Classic Operating Systemsbill
I only picked 70's because I used VM370 on a 4331 in 1980 and it was a mature product already then. bill