> On Jul 15, 2016, at 9:08 PM, Chuck Guzis <ccl...@sydex.com> wrote:
>
> 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?
IGS? Two colors? Don't recognize that. There's the 6000 console (DD60), very
expensive, requiring a dedicated processor to feed it, and limited to uppercase
text only plus very small amounts of graphics (a dot at a time, 3 microseconds
per dot).
paul
