A new AT&T video out today showing their (at the time, the Bell
System's) internal CAD and messaging system, TOPES:
https://www.youtube.com/watch?v=VKbFM770dus
Not a lot of info out there about it but it appears to have run on
DEC-10 machines. There are a none of those to be seen in the video
but there are a few AT&T/Teletype Dataspeed and Tektronix terminals.
Interesting early collaboration system that probably never left Bell -
did anyone here work with it?
-j