You just break out of that error message and type PR#5 to boot from the 3.5" drive or PR#6 to boot from the 5.25" drive, and floppy based software will boot.
Is there a site or some-places we can find all those information on special keys or hint that can be used on the IIgs?
As per memory, the ROM03 has 1 MB onboard and the memory card supports a maximum of 1 MB. So 2 MB sounds right.
Yes, ROM 03 is 1 meg, but I thought that the memory card could be upgraded by changing the chips on it for higher capacity?
A 4 MB card will get you further, but will cost more money.
Is there a model number associated with this?
The composite may be greyscale only. I don't know, as I've never had to use it.
According to the link posted by another member, yes, it sounds like B&W only, which may be normal... Too bad for playing lemmings in color
