PDP-11, PDP-10. Hot stuff back in the late 70s, early 80s.
RSX, RSTS/E, RT-11, operating systems. Good stuff.
Basic Plus2, DIBOL, programming languages.
Memories.
I’ll call yer history and raise with SWAC (at UCLA), APL, JOVIAL, SNOBOL, Bendix G-15, and untold machine/assembly languages.