On 07/15/2016 05:47 PM, Paul Koning wrote: > Graphics terminals were quite rare in the early 1970s, at least at a > cost allowing them to be installed in the hundreds, and with > processing requirements low enough for that. I remember, around the > same time, the Tektronix 4010. But that was far less flexible; it > could only draw, not erase, unlike the PLATO terminals.
Surely you remember CDC IGS from the 70s. I loved watching the displays being drawn on those big radar CRT displays--one color while drawing and persisting in another. They were "terminals" of a sort, no? --Chuck