You probably don’t know the name Grace Hopper, but you should. As a rear admiral in the U.S. Navy, Hopper worked on the first computer, the Harvard Mark 1.
Rear Admiral “Amazing” Grace Hopper was one of the first (and finest) computer programmers in history. She was also a badass mofo, blazing against institutional blockheadedness her entire (extremely long) career. She created the first compiler and spearheaded the creation of COBOL, one of the first compiled computer languages - opening up the field of programming to people who didn’t have high-level math degrees.