Christiani is a large German business school for different subjects. They had at least 2 (vintage) educational systems. This is a PICO-85
The other was a SC/MP (I had a post here)
This Pico-85 rack system (8085 CPU), full title Christiani Mikroprozessor System 85, is even rare. I haven’t found any info or photo. This photo is from my personal 2017 backup, I don’t recall the source, maybe an auction.
Manuals came in very large binders as part of their courses.
I know that there were external boards. I don’t know the production year.
Does anybody have more info or experience?
A similar system was the MFA (also rack, also 8085) by BFZ.