This is a great question asked these days after the launch of NASA’s Curiosity Mars Rover. And, it all worked. The 500,000 lines of computer code went off without a glitch. The 76 onboard explosive devices popped off in sequence to the μs, throwing valves and cutting loose tether lines. So Curiosity rover’s 7 minutes of terror had the happiest of endings. And we heard ‘Touchdown confirmed. We’re safe on Mars’.
So, I came across the answer to my question on Quora
It was also discussed in the Strong Artificial Intelligence Facebook Group
Obviously, its the good old C language. You may also like the discussion here.