13 Oct
2006
13 Oct
'06
6:19 a.m.
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