Re: computer video (was Re: Free IBM AT)

2006年3月08日 15:52:50 -0800

> Of course not, neither Mac, nor Lisa could display
> 80x25x16 or 40x25x16 
> color text mode
 Maybe that's the whole point, hmmm? The PCs have
dedicated crt controllers...the Mac didn't. These were
highly programmable, had diverse textual and graphical
modes.
>which the video makes it hard to
> distinguish between.
 Absolutely. And that's the beauty of it (it wasn't
all that hard to distinguish actually. A marvel on
such early equipment though).
> It's nice that someone bothered to write the
> assembly code to do that, 
> but, meh. Truth be told, that's either a 2K or 4K
> display. 
 It's an original IBM CGA 5153. Not sure what you mean
by 2K or 4K.
> Compare that to digital camera displays whose real 
> state is measured in megapixels, and it's not all 
> that impressive. It's about the size of 
> two icons, if that. :-)
 
 Ummm, what decade are we talking about here? You're
comparing a 1981 display to a post 2000 digital
camera? Get real.
> Then again, neither could the IBM PC's CGA display
> do 720x384 (half of a 
> printed page) black and white that looked as good. 
 Not sure if that's a reference to the Lisa, but the
Mac did 512 x 342. The IBM MDA card displayed 720 x
348 on any compatible monochrome monitor, any color
(paper white displays weren't commonly used with IBM
stuph). And granted, no graphics until the Hercules
card came out.
 
> Most you could get 
> from a CGA card is 640x200x2.
 True, but for 2500,ドル the price of the original 128k
Mac IIRC, you could get a PC or compatible with double
the resolution, with 8 or 16 colors.
 
> Chris M wrote:
> 
> >let's see if I'm allowed to post to Lisa list
> today. I
> >don't know about all that. Could an early Mac do
> this:
> >
> >http://www.oldskool.org/pc/8088_Corruption 
> > 
> >
> 
> 
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