The 1090 (PDP-10, DECsystem-10, KL10) is a 36-bit mainframe made by DEC in the late 70s. It uses multiple 16-bit PDP-11 minicomputers for I/O processing.
This one has 6 cabinets of core memory, with 256 kilowords apiece, for a total of 1.5 megawords.
