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JC,

For what its worth, the previously described PC104 486 based system was
used by my company to controll a filter system & write to an X display
at the same time running Linux. That system only had 128MB of RAM & that
might have been too much. All applications ran from RAM.

The problem with X apps that run on Linux is that when they are
developed with a toolkit such as Motif or GNOME, you end up including
quite a lot of baggage along with the X app. One way to solve this is to
search for a "light" toolkit or to simply write your app in plain X
yourself. People often say of Such apps "Hey your X app really starts
fast!" That being said, you should not be surprised when X sucks 50% of
the performance of your CPU up on such a box.

On my production unit, the X Application was the only one running &
didn't need a desktop. Under the hood, my drivers supplied the needed
data to the X app. Hopefully, it goes without saying that the kernel was
a custom striped down version with my drivers & very little else.

Evan
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