PDP-11 Operating Systems

Michael Thompson michael.99.thompson at gmail.com
Mon Mar 14 18:52:50 CDT 2011

> From: Johnny Billquist <bqt at softjar.se>
> All I can add about operating systems related to the original question is that unless I remember wrong, CTS-300 and CTS-500 were based on RSTS/E (basically RSTS/E and hardware bundled together as a complete solution).

I think that CTS-300 ran on RT-11, and CTS-500 ran on RSTS/E. You
could not compile a Dibol program on CTS-300 without shutting down the
main application. On CTS-500 it was easy to compile and debug online.

Michael Thompson

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