That was almost 40 years ago, so little I recall other than it was an 8088 variant in there, the peripheral bus was unique to that machine and the only documentation was in the tech manuals (as opposed to the hardware reference book I had for everything else), and I got lucky and the lab had requisitioned a Model 2, so the screen was nice and they'd gotten the full 640Kb RAM.
https://en.wikipedia.org/wiki/IBM_PC_Convertible has all the details on that machine you could want.