IBM 1969 education system (not S/360 and now Raspberry Pi) (hackaday.com)

This might be more interesting from a real user perspective of that computer (for two lines only but still …) : https://www.cs.cmu.edu/~popl-interviews/peytonjones.html

On top of some info about this first education computer : https://www.youtube.com/watch?v=uGxv1BeEjGA