Tom Gardner says:
May I suggest compatibility is like pregnancy – you
either are or
you are not.
Agreed. This is why every non-highly compatible MS-DOS computer, like the Tandy 2000 and
TI Professional, failed versus IBM. Even if a buyer only intended to use Lotus—widely
ported to various MS-DOS non-compatibles—he would always have in the back of his mind
"What if I want to run something else? What if I need to give a disk with data to
someone with IBM?"
Hyperion never purported to be PC-DOS compatible and
as noted it
wasn’t even offered as generic MS-DOS compatible.
I was amazed to not see on Santo's February 1984 list of Hyperion-certified compatible
software Lotus or Flight Simulator. The latter, I can understand. The former made Hyperion
dead on arrival.
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