QUESTION: Has the programming language ADA been used with MGS? ANSWER from Charles Whetsel on June 26, 1997: The Mars Global Surveyor Flight Software was written in a programming language called JOVIAL which is very similar to ADA, but slightly older. The microprocessors for MGS are MIL-STD-1750A, which is a more traditional (also much older) flight computer than the advanced systems that MPF is using.