Re: Apple IIGS monitor replacement

["Bryan Parkoff" <nospam@nospam.com>]

Mitchell Spector,

>    What I recall was the cost of non-interlaced monitors being very
> costly back then, so Apple reasoned it made no sense supporting
> more than 640x200 in the GS's hardware. Ironically, the AppleColor
> RGB was *still* very expensive, and, does support 640x400 interlace.
> As a matter of fact if you have a Video Overlay Card (which duplicates
> the same VGC video chipset from the IIgs) you can display 640x400
> on the AppleColor RGB as-is. Made me wonder why Apple couldn't
> at least update the GS to display interlace video if its companion
> display supported it. If the VOC did it, how difficult would it be for
> the ROM 3?

    Apple IIe emulation card from Macintosh LCII and Video Overlay Card have 
the same video modes of RGB like Apple IIgs' Mega II chip and VGC chip.  Do 
HGR and DHGR look same in RGB screen?  ARe you sure?

Bryan Parkoff