On Mar 11, 2020, at 6:05 PM, Antonio Carlini via
cctalk <cctalk at classiccmp.org> wrote:
 On 11/03/2020 21:30, Paul Koning via cctalk wrote:
 Sometimes we get lucky.  Again, PLATO -- got permission to use it but the owner
didn't have a copy.  Fortunately, someone else did (an actual still-running production
system, on an actual CDC mainframe) and that person was willing to do the work to copy the
system in a form we could use. 
 Wow. A CDC mainframe still running: I don't know why I'm surprised (given this
list) but surprised I am! 
Not any more, but it was back then (2004).  I believe it shut down in 2009.  FAA training
system.
        paul