Building a ‘magic magnetic theater’ from a 1979 HP pen plotter driven by an RPi3. The pen here replaced by an electromagnet. Can track and move various objects that are placed on the (eventual) stage
n0st4lgix
IBM 405 Alphabetic accounting machine. Our high school had one, and it was old af even in the 1970s. Worked by reading cards and then you could select which fields to print, do basic filtering of records. Kind of like a 1940s SQL server lol. Big patch cable board to program it and banks of relays that sat in an oil pan (yeah you probably had to change the oil on this thing)
The Nordsiek analog computer, from 1950, an electromechanical computer capable of calculating differential equations. Downside was it was programmed via patch cables carrying over 100 volts and the programmer routinely got shocked while doing his thing.
This is Jet Rocket, the OG Sega arcade game. It is an electro-mechanical flight simulator, that came out in 1970.
Remington 1211 Nixie-Tube calculator from 1971