Re: Strange Apple II RGB Monitor ---> Apple III

["Roger Johnstone" <rojaws@es.co.nz>]

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In article <5iFj5.3254$aK5.53940@news1.online.no>, "Deacon Blue"
<scavenger@apexmail.com> wrote:


>Hi!
>
>How is the RGB signal on the Apple III defined?  Analog RGB as on the IIGS,
>or a digital Video-7 RGB signal?  Any update on this appreciated!
>
>best regards

It's digital RGB. Apple described it as XRGB, it is not the same as the RGBI
(red, green, blue, intensity) that the IBM PC CGA cards used. I think the
Video 7 produces a CGA-compatible RGBI. I think with XRGB it was just a
4-bit code which was used to pick one of 16 colours rather than a real RGB
signal. Um, I think.

The connector is at <http://til.info.apple.com/tilarchive.nsf/artnum/n1423>.


Roger Johnstone, Invercargill, New Zealand
http://homepages.ihug.co.nz/~rojaws
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My software never has bugs. It just develops random features.