There was a Three Rivers Graphic Wonder (a vector display) on the University of Toronto PDP-11/45 in 1975, maybe 1974. There wasn't a frame buffer until Dave Tennenhouse built one around 1978 - not sure of that date, maybe a little later . 256x256, 8 bits per pixel, or 65kilobytes, the full data address space of the PDP-11. -rob On Mon, Mar 6, 2023 at 5:52 AM Noel Chiappa wrote: > > From: Kenneth Goodwin > > > The first frame buffers from Evans and Sutherland were at University > of > > Utah, DOD SITES and NYIT CGL as I recall. > > Circa 1974 to 1978. > > Were those on PDP-11's, or PDP-10's? (Really early E+S gear attached to > PDP-10's; '74-'78 sounds like an interim period.) > > Noel > >