> > I'm talking about things that have been done 20 years
> > ago on machines with a _microprogramm_ clock of 8 to 12
> > MHz (and an instruction time of 1 to 2 us). The Viewpoint
> > Desktop was drawn _very_ smooth and fast. WYSIWYG is not
> Remember that the PERQ (and I would assume the Xerox machines, although I
> know a lot less about them) had a graphics blitter from the beginning. In
> fact one of the design specs for the PERQ 1 was that it must be as fast
> at displaying text (even though it was a bitmapped display) as a normal
> terminal on a 9600 baud line (which is what most people were used to).
> In fact the PERQ 1 considerablly exceeded that spec. Just doing graphics,
> it could manage 10 full-screen bit-blits per second (!). Something that
> few PCs could manage (or even can manage?)
Today its possible - Memory to Memory transfer using
PCI is above 40 MB/s and thats well for a 4 MegPix
display.
Gruss
Hans
--
Ich denke, also bin ich, also gut
HRK
Received on Mon Dec 14 1998 - 17:01:19 GMT