PLATO and learning models (was Re: NuTek Mac comes)

[Eric Smith]

On Fri, Jul 15, 2016 at 6:47 PM, Paul Koning <paulkoning at comcast.net> wrote:
> 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.

The 4010 can erase just fine. The problem is that it can't do
selective erase, only
full-screen erase, and erasing is a slow operation.

Tektronix had other models that could do both storage and refresh
graphics, but they were even more expensive. The refresh capabilities
tended to be fairly limited.