The standing joke with AIX was that it was pronounced
"aches" (as in
pains),
but I was glad that it ran "smit" for admin
stuff, as there was no way
that I
could remember the appropriate Shell commands.
We wanted to call the window manager "panes" on Aix (Aches and Pains).
My only real memory of beating on the RS/6000 was that while it had a 24-bit
graphics card, the X server didn't have a 24-bit visual.
That and I was able to break into the demo box IBM sent me by turning the
key to the "wrench" position and then shell escaping out of a more command
it launched.
I spent more time hacking the 370/PS2/i860 version of the kernel which was a
unified source base.
This had switching console contexts they called the "High Function
Terminal." We named our i860 version of it the "Low Function Terminal."