Grace Hopper

Grace Hopper Grace Hopper was an American computer scientist and United States Navy rear admiral who was a pioneer of computer programming and invented one of the first linkers and the first compiler. She popularized the idea of machine-independent programming languages, which led to the development of COBOL—one of the first high-level programming languages still in use today in banking and financial systems. She is also credited with popularizing the term "debugging" after finding an actual moth causing a malfunction in a computer in 1947.