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 <jnc@mercury.lcs.mit.edu> 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