-=> /* Quoting Murray Lesser to Frank Sexton */ <=-
 FS> Since the only "standard" comm ports that are defined
 FS> by the official AT standard are COM1 and COM2, the
 FS> video card manufacturers don't care about COM3 and
 FS> COM4 addresses. They figure they're free game. The
 FS> addresses for COM3 and COM4 are "de facto" standards
 FS> in the industry but are not hardcoded into the
 FS> official AT specs.
 ML> I don't think there ever were a set of "official AT
 ML> specs" - at least not published by IBM.
How was IBM able to build more than one machine the same if
there were no specs?  I thought they had XT specs and AT
specs that they went by and that these were eventually
adopted by "clone" makers.
-Frank
(fsexton@xpert.net - http://www.concentric.net/~fsexton)
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