history is hard

[Peter Coghlan]

On Sun, 24 May 2020 at 13:20:41 -0600, Warner Losh wrote:
> On Sun, May 24, 2020, 11:04 AM Toby Thain via cctalk <cctalk at 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.
>

What do you mean by "Unix had virtualization"?

Come to think of it, what do you mean by "OS/360's VM"?

Regards,
Peter Coghlan

>
> Warner
>
>
> --T
>>
>> [1] https://en.wikipedia.org/wiki/History_of_CP/CMS
>> [2] e.g. ref: Per Brinch Hansen, Classic Operating Systems
>>
>> >
>> > bill
>> >
>>
>>