Early Microprocessors in Industrial Microcomputers

[Jerome H. Fine]

 >Paul Koning wrote:

>>On Mar 9, 2016, at 1:54 PM, Chuck Guzis <cclist at sydex.com> wrote:
>>...
>>I suspect that the nuclear power industry is one place that you'll find the oldest stuff, however, given the long regulatory approval process for change.
>>    
>>
>
>I remember a nuclear reactor (research, not power generation) controlled by a PDP-9.
>
For Ontario Power Generation (formerly Ontario Hydro), the Nuclear Power 
Generation
station at Darlington (just East of Toronto) still uses the PDP-11 
running RSX-11.  A
refurbishment is either in progress of will commence soon and that might 
change, but
it is unlikely.  It is easier to continue to use the original hardware 
and software than
to completely revamp the system.  In the past, only the servicing 
hardware tends to
change.

Jerome Fine