The ibm 5161
expansion box was designed for use with
the ibm pc.
And presumably *only* the PC, ie not the XT.
It is documented as working (by IBM) on the XT and PortablePC...
Not that I've found, just an 8-slot backplane
which immediately loses a slot
Yes, that's what I'd expect. It's almost a totally passive backplane, but
there's a clock generator chip + crystal to generate the 14MHz 'osc'
signal (which is not taken from the main PC)_
because one of them must be occupied by the receiving
end of the expander
interface that has to go in the 5150. There might be a BIOS in that
interface though, I didn't really check that. The 5161 has a hard drive
There isn't...
controller card in it as well as a Seagate monster
that's probably only 5 or
10 meg.
Yep...
the card that connects to the ribbon cables that
come
from the exp box goes into one of the pc's card slots.
No ribbon cables, just an interface cable that's thicker than my thumb!
That's what all my expansion units have too...
-tony