RL02 version of UNIX6?

jim stephens jwsmail at jwsss.com
Thu Feb 2 13:53:41 CST 2017

On 2/2/2017 11:40 AM, Tony Duell wrote:
> On Thu, Feb 2, 2017 at 7:38 PM, william degnan <billdegnan at gmail.com> wrote:
>>> On 2/2/17 11:32 AM, william degnan wrote:
>>>> All this talk about compatibility...was there ever UNIX made for the PDP
>>>> 11/40 and RL02, or was it only run on RK05?  Wouldn't all of the C and
>>> wake
>>>> calls, etc issues have been solved then?  Why is this an issue now?  I am
>>>> largely ignorant to the details but from 20000 feet it would seem like
>>> this
>>>> would have been taken care of long ago.  No need for pre-processing code,
>>>> etc.  Please educate me if I am wrong, just curious.
>>>> Bill Degnan
>> On Thu, Feb 2, 2017 at 2:36 PM, Al Kossow <aek at bitsavers.org> wrote:
>>> DEC V7m comes to mind.
>> Yes, but in 1974 that was not an option. I guess the 74-77 version of UNIX
> I am just wondering where on earth you'd find an RL02 in 1974.
> -tony
Western Dynex had 2.5mb removable over 2.5mb in 71.


Last version at link above, model 6000 is essentially an RL02.  Came in 
12, 18 and 24 sector (strapable).  I think it could be hooked up to DEC 
as the interface was pretty much the same.


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