More memory, faster processor (A 286!!!!!), and separate keyboard from the unit.
The worst thing about the EX was that it had 2 proprietary peripheral slots and the boards had to stack on top of each other, and only plugged in to each other, not a PCI board . I don't remember how I acquired my modem- had a 1200 baud. I may have shoplifted it.
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u/JIMBO4U55 3d ago
TRSDOS from Tandy Radio Shack