PDP-11 Operating Systems

[Chuck Guzis]

On 11 Mar 2011 at 14:38, Brent Hilpert wrote:

> It would be interesting then if the Fox-2 was PDP-11-based. That is, 
> did Foxboro give up on making their own hardware, take their 
> process-control software/OS and port it to PDP-11 hardware and then 
> sell rebadged PDP-11s?

It's quite curious:

http://www.isa.org/Template.cfm?Section=Books3&template=Ecommerce/File
Display.cfm&ProductID=9373&file=About_the_Author_Caro.pdf

seems to say that the Fox-2 preceded the Fox-1:

"Foxboro Company was my next stop. I went to work immedi-
ately on its PDP-8-based control systems. I led the team that 
converted its control systems to the PDP-11 as the FOX/2 and 
2A. Later, I led the team that brought the FOX/1 to market in 
my first project as a department manager...

The Fox-1 was a 24-bit system.

--Chuck
(My own experience with Foxboro was mostly with chart recorders and 
regulators.  Too early for computers.)