On 4/5/07, Tony Duell <ard at p850ug1.demon.co.uk> wrote:
There are minor differences, mainly due to the fact
that the MDA card's
printer port is at a different address (you can have the MDA card _and_ 2
printer adapters in the same machine).
That's handy to know - every once in a while, I long for a machine
with 2 or 3 parallel adapters, for things like old Connectix cameras,
LCD displays and the like. I've never assembled an ISA machine with
more than one printer adapter. I know that it really doesn't matter
to your own code what the I/O address is, but I wasn't sure how
flexible the underlying hardware might be to being assigned to
alternate addresses.
-ethan