On Mon, 8 Aug 2011, William Donzelli wrote:
Do you honestly think that the IBM PC design team
thought that people
would hang all this different stuff off their machines?
I honestly don't know what they intended. They made provivion for
expansion, such as building in support for [optional] four floppies,
[optional] serial, [optional] parallel, provision for both video systems
to co-exist, etc. They were obviously well aware of the propensity for
expansion of TRS80 and Apple][. Their internal expansion options look
like they were modeled after Apple, but I'm sure that absolutely
everything was completely original.
And having only 5 expansion slots was to demonstrate that they were big
enough that they didn't have to learn from anybody else's mistakes.
But, they included support for cassette write-only storage, RF modulator,
and some early commercials were of a toddler playing with it on the living
room rug (which the Lisa also did).
They explicitly made provision for multiple serial and parallel ports!
They did NOT make provision for multiple FDC, although they also didn't
take steps to block it.
You are, however, absolutely right that I KNOW that I have never been
their target market.
--
Grumpy Ol' Fred cisin at
xenosoft.com