Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: utzoo!mnetor!uunet!seismo!rutgers!cbmvax!daveh 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