On 2/2/2017 11:40 AM, Tony Duell wrote:
On Thu, Feb 2, 2017 at 7:38 PM, william degnan <[email protected]> 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 <[email protected]> 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.

https://archive.org/details/bitsavers_westernDyntionManualRevPOct78_13256055

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.

thanks
Jim

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