MSDOS Source code leaked

[Bob]

On Fri, 13 Oct 2006 13:43:42 +0000, Jules Richardson wrote:

>That's interesting, though. IBM must have believed that the 5150 would be a 
>global product and I'd expect that was the plan all along - so why put 
>circuitry on there for one market only?


I do not think there was ever was a PAL version of the CGA card.
As far as I know the CGA card was the only one dependant on the base clock freq being right on.
or It would loose color burst. I always thought the 4.77mhz was chosen because it could also be used as the
clock ref for the video.

THe other Bob