[Coco] 384 or 450 scanlines ?

[Ciaran Anscomb]

Nick Marentes wrote:
> 
> Maybe the terms "Interlaced" and "Progressive" are more appropriate that
> don't reference the actual resolution but the way the scanlines are layed
> out to fill the vertical resolution of the display?
> 
> The CoCo can't do progressive.

I see it as only doing progressive - half resolution, double rate (50Hz or
60Hz) progressive.  The machines never actually *emit* that blank field you
describe, the lines for it are just never scanned.

..ciaran