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From: daveh@cbmvax.UUCP (Dave Haynie)
Newsgroups: comp.sys.amiga
Subject: Re: RGBI Monitor
Message-ID: <2152@cbmvax.UUCP>
Date: Thu, 23-Jul-87 13:03:30 EDT
Article-I.D.: cbmvax.2152
Posted: Thu Jul 23 13:03:30 1987
Date-Received: Sat, 25-Jul-87 07:38:24 EDT
References: <8707230136.AA12265@cogsci.berkeley.edu>
Organization: Commodore Technology, West Chester, PA
Lines: 19

in article <8707230136.AA12265@cogsci.berkeley.edu>, bryce@COGSCI.BERKELEY.EDU (Bryce Nesbitt) says:
> Keywords: C128
> 
>    Disadvantages: RGBI stands for "Red" "Green" "Blue" "Intensity".  One
>    bit is available for each.  This makes for a maximum of 15 colors
>    (Black half-intensity is the same as Black full-intensity).  

That's what it stands for, but that's actually misleading.  RGBI is merely
4-bit digital video.  The 4 bits, plus proper sync, is all the monitor
gets.  Where are the colors?  The monitor chooses them, of course (in fact,
we have one monitor around here that can be switched from producing IBM
flavor RGBI colors to Apple flavor RGBI colors).  The 1902 monitor does
in fact produce 16 different colors.  Black with intensity on is mapped
as purple.  But on a different monitor, it could be black, green, pink,
or any color.  
-- 
Dave Haynie     Commodore-Amiga    Usenet: {ihnp4|caip|rutgers}!cbmvax!daveh
"The A2000 Guy"                    PLINK : D-DAVE H             BIX   : hazy
     "Catch a wave and you're sittin' on top of the world" -Beach Boys