A circuit board from the Saturn V rocket, reverse-engineered and explained

1 · Ken Shirriff · April 8, 2020, 4:15 p.m.
.hilite {cursor:zoom-in} In the Apollo Moon missions, the Saturn V rocket was guided by an advanced onboard computer system built by IBM. This system was built from hybrid modules, similar to integrated circuits but containing individual components. I reverse-engineered a circuit board from this system and determined its function: Inside the computer's I/O unit, the board selected different data sources for the computer. A circuit board from the Saturn V LVDA. (Click this image (or any other...