AI memo 161A: ITS 1.5 Reference Manual, July 1969: > An .OPEN on device USR with a second file name of "PDP10" may be made, > in all the modes allowed for regular procedures, to access the memory > of the PDP-10.
So at this time, the AI PDP-6 was still the primary CPU. AI memo 238: ITS Status Report, April 1972: > Actually the Project MAC Dynamic Modelling Group uses a non-paged > early offshoot of ITS on their PDP-10. So it seems DM kept using the non-paged version of ITS, probably like what their PDP-6 did.
