**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:

  - TV-11, the Knight TV controller; a PDP-11/20.  See [[its_managing_tv11]]
  - XGP-11, for the printer; a PDP-11/10.
  - CONS, Lisp machine prototype.  Also GT40 as its console.
  - CHEOPS, chess accelerator.
  - Logo group PDP-11/45.
  - Micro automation PDP-11/40.
  - Vision PDP-11/40.
  - 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.