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From: sands@apple.com (Michael Sands)
Newsgroups: comp.sys.mac,comp.sys.mac.hardware
Subject: Re: Color video cards info
Message-ID: <7289@goofy.Apple.COM>
Date: 20 Mar 90 21:09:43 GMT
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References:<432@gestetner.oz> <1990Mar9.004044.16761@eddie.mit.edu>  <5929@crdgw1.crd.ge.com> <27835@cup.portal.com>

It would not be possible to have 24-bit grey scale where you have full 
resolution in grey levels.  But there is another way of looking at it.

If you drive the red, blue and green guns equally, you have a black and 
white picture.  If you then strive for as much resolution as possible, you 
will have 256 levels.  This is the same as you currently have on a 
"standard" black and white monitor.  

The other question is how much resolution do you need to stimulate the 
typical human eye.  A short poll here suggested anywhere between eight and 
ten bits.  There are ten bit DAC's available.



Michael Sands
system extension group
(408) 974-6108
novice driver, just my thoughts