On 2020-05-24 3:20 PM, Warner Losh wrote: > > > On Sun, May 24, 2020, 11:04 AM Toby Thain via cctalk > <cctalk@classiccmp.org <mailto:cctalk@classiccmp.org>> 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. > > > The topic for my talk next week. Unix had virtualization in 74. The > second Unix port ran under OS/360's VM in 78.
I thought the Interdata port was second? --T > > Warner > > > --T > > [1] https://en.wikipedia.org/wiki/History_of_CP/CMS > [2] e.g. ref: Per Brinch Hansen, Classic Operating Systems > > > > > bill > > >
