Grace Hopper
Grace Brewster Hopper was an American computer scientist, mathematician, and United States Navy rear admiral. She joined the U.S. Navy during World War II and was assigned to program the Mark I computer. She continued to work in computing after the war, leading the team that created the first computer language compiler, which led to the popular COBOL language.
Margaret Hamilton
Margaret Hamilton (born August 17, 1936, Paoli, Indiana, U.S.) is an American computer scientist who was one of the first computer software programmers; she created the term software engineer to describe her work. She helped write the computer code for the command and lunar modules used on the Apollo missions to the Moon in the late 1960s and early ’70s.
Katherine Johnson
Katherine Johnson. Johnson was a mathematician, often called a "human computer," who calculated the trajectories for the first moon landing and John Glenn's first orbital flight in 1962. One of NASA's human 'computers,' Katherine Johnson performed the complex calculations that enabled humans to successfully achieve space flight. Her story is depicted in the 2016 movie 'Hidden Figures.'