I was at Logicon - we inherited some of that - including the PWB install - when we continued their KSOS work. That would have been around 1982-1983; when I got there the KSOS work (hosted on PWB) was already underway. If I could find that darned Modula compiler - I've got the original KSOS source code for PDP-11. Tom On Sat, May 20, 2023 at 9:05 AM Jon Forrest wrote: > > > On 5/20/2023 6:43 AM, Clem Cole wrote: > > However, we know that while PWB was never > > released officially outside of the Bell System > > I've mentioned this before. We had PWB at Ford Aerospace in > the late 1970s. This was in the group that Mike Padlipsky and > John Nagle were part of. > > Jon > >