What if instead of dropping the Z80/68000 line of computers, Tandy had embraced their potential?  Pushed the memory capacity, extended the MMU, continued to develop XENIX?  What would that have looked like?

What if there’d been a memory board to provide all of the RAM the 68000 could address? What if there had been a 3-bit MMU extension to allow that extra memory to be used as memory for user processes?

Where might XENIX have gone, past the 3.3 release?  Might there have been a 3.4 or even a 4.0?

We wonder about that too, and sometimes to figure out where something might have gone, you have to go there to find out if it was even possible. And that is where we started.

 

That start was an 8 megabyte static RAM memory board for the 68000.  And once you have that, the next thing is to design something to facilitate using all of that additional memory. Something that’s easy to install and use. So, we did that too.

 

And then…