For those wondering what ITS is. It's an operating system that was developed at MIT for the PDP-6 and later PDP-10 starting in the mid 60s. The last ITS system was shut down in 1990. A very cool thing about ITS is that DDT, the debugger, is the user interface to the OS. You can load files, examine and change memory of your current job (and also DDT itself!), and of course also start programs. ITS is also where EMACS was written on. It started out as a set of macros for the TECO editor (a crazy beast).
EDIT: The linked repo currently builds an ITS runnable on a KS10 (emulated by simh and klh10). Eventaully we want to get it running on an emulated KA10 too. Getting it to run on a PDP-6 would probably only be possible if we get an older version of the source from somewhere (MIT might still have it). Another goal would be to get the 10-11 interface (a connection between a PDP-10 and -11) working so that we can try emulating the Knight TV system.
EDIT: The linked repo currently builds an ITS runnable on a KS10 (emulated by simh and klh10). Eventaully we want to get it running on an emulated KA10 too. Getting it to run on a PDP-6 would probably only be possible if we get an older version of the source from somewhere (MIT might still have it). Another goal would be to get the 10-11 interface (a connection between a PDP-10 and -11) working so that we can try emulating the Knight TV system.