ITS and PDP-11 machines

There is great support for programming PDP-11 machines in ITS. Software tools are:

• PALX - assembler.
• 11STNK - linker.
• 11SIM - simulator.
• STUFF - write to PDP-11 memory.
• And plethora of DDT-like debuggers, often named RUG.

On the hardware side, there is the “Rubin 10-11 Interface” made by Jack Rubin. It's a device which is mapped into PDP-10 memory space on one side, and eight Unibuses on the other. Here's a list of the attached processors:

1. TV-11, the Knight TV controller; a PDP-11/20. See its_managing_tv11
2. XGP-11, for the printer; a PDP-11/10.
3. CONS, Lisp machine prototype. Also GT40 as its console.
4. CHEOPS, chess accelerator.
5. Logo group PDP-11/45.
6. Micro automation PDP-11/40.
7. Vision PDP-11/40.
8. CHAOS-11, Chaosnet gateway for the AI PDP-10.

Some other PDP-11s on the MIT campus:

• Ed Fredkin's GT44 / PDP-11/40.
• The Plasma Physics Grinnel TV system attached to MIT-MC.
• The MIT-MC front end PDP-11/40 with custom software.
• The MIT-MC DC76 front end with custom software.