Hal Laning, https://en.m.wikipedia.org/wiki/J._Halcombe_Laning https://en.m.wikipedia.org/wiki/J._Halcombe_Laning , made the first compiler. (Grace Hopper's thi

Hal Laning, https://en.m.wikipedia.org/wiki/J._Halcombe_Laning https://en.m.wikipedia.org/wiki/J._Halcombe_Laning , made the first compiler. (Grace Hopper's thing did not parse source code. She just described it as a compiler.) He also coded the OS on the Apollo Guidance Computer that saved the day and mission, during the Apollo 11 moon landing, by rebooting into saved state and resuming real-time control of the vehicle without a hiccup, when operator errors repeatedly overloaded it. (Margaret Hamilton is often given credit for this, but she programmed other stuff.) He never got the Turing Award he so richly deserved.