This is a great video about the computer which controlled the rocket. This was built by IBM. I read somewhere that all the design data for this has been lost
The AGC (Apollo guidance computer) has been recreated in an FPGA
https://github.com/virtualagc/agc_simulation
The enthusiasm of these people is astonishing.
They powered up the +4V and +14V power supplies here after 50 years and they worked… Mind you, I recently powered up some stuff I did 35 years ago and it all worked too, and that used cheap commercial components while the NASA stuff was all milspec. It’s the capacitors you have to watch.