VAX graphics

[e.stiebler]

Johnny Billquist wrote:
> It might be that the graphic system have a color palette then, since 
> obviously, there are other colors than blue possible, but none others 
> are shown there.
> Or else they have a 24 bit pixel depth, which would be very impressive.

Our grinell had more than one buffer, and you could do operations 
between them too.

> I dare say we can safely assume it's not a serially connected terminal 
> (even ignoring that I don't think I've ever seen or heard of a serial 
> terminal with bitmap graphics with a resolution close to this).

I agree here ;-)

Ours was also attached via a DRW whatever on the bus.
(Sorry, thirty years ago ;-))

> Never heard of grinell.
> But I have a VSV21 here. 640x480 pixel resolution. Unfortunately only 4 
> bitplanes. But it's a very fun graphic system for the PDP11 anyway... 
> And later than 1981, but made by DEC. Oh, and that's for the Q-bus... 
> Unibus graphic systems are rarer...

I should have them here too. One day ...

Cheers