At 03:03 AM 1/21/2003, J Sand typed thusly:

>What is a DOS card?  The best I can understand is it is a way for a Mac to
>use an 80x86 processor.  Is this correct?


A few versions I know of:
1. 486 on a PDS card (or adaptor, or "built in" with some sort of 
extension, like the Performa 640CD.) These can, from what I read, *only* 
run DOS. Something about how they access the disk and/or hardware - though 
IIRC the Perf. 640CD has a sound blaster chip in it.

2. 486 on some other (NuBus, don't think there was a PCI version, but I 
could be wrong) card.

3, Pentium on a PCI card (don't recall anything higer than a 166-200 being 
mentioned.) Not sure what the last two could run, if they were more 
flexible than the first one listed.

At the time, the Mac's processors were too slow to make emulation feasable, 
so these pcs-on-a-card were created. I, personally, *still* think they'd be 
a good idea... if there were room, emulation *wasn't* as good, and/or real 
PCs weren't so cheap (if you absolutely needed one, though I wouldn't 
suggest the $499 specials for gaming.) 


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