Spacex F9 OS

Question

Who knows what language is written Falcon9 system?

Answer 1

Most operating systems and embedded systems are written in a lower level language like C.
I am only guessing but I would bet anything and everything that there is not just one operating system on the Falcon9. There are probably thousands of little embedded ICs that manage the parts and they all take commands from systems higher up. Similar to a bot net. The bot master is probably written in a lower level as well because of the speed and granular coding ability of those languages. No extra interpreter is needed so fewer things can fail.

Good question though. I hadn't thought about it much until you asked.

Answer 2

c / c++ because this are the skills they are hiring