Re: [midatlanticretro] PS/2 trivia question
- right...like I said, the MCGA can do 640 x 480 just
like VGA, just not in as many colors, b&w in fact. And
the Model 25 and 30 have an 8086, not an 8088.
> John Allain wrote:If you're
> >>> those 'quasi-PS/2 machines did use VGA graphics.
> >>> plugging in a TTL monitor, that might be aproblem.
> >> Nope. Not VGA. MCGA.
> > Still, the VGA signal levels and the DE15 shell
> > connector still applies for the model 30, I
> > Indicates VGA is a superset of MCGA?doesn't have any EGA
> VGA is a superset of both EGA and MCGA. MCGA
> capabilities whatsoever, and in addition, VGA has abunch of
> higher-resolution modes that MCGA doesn't have. Theonly
> higher-than-EGA resolution mode that MCGA has is320x200/240x8.
>acceleration and twice as
> 8514 is essentially a VGA with rudimentary
> much framebuffer.PC graphics cards at
> XGA was heavily accelerated compared to many other
> the time. And it had twice the framebuffer of 8514(1MB) which allowed
> it to run at 1024x768x8.framebuffer, but
> XGA-2 had faster acceleration and DAC's, 2MB of
> couldn't run at higher resolutions or color depthsthan XGA. The extra
> framebuffer space gave it double-bufferingcapabilities.
> Peace... Sridhar
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