Grace Murray Hopper (December 9, 1906 – January 1, 1992) was an American computer scientist and United States Navy rear admiral. She was one of the first programmers of the Harvard Mark I computer in 1944, and invented the first compiler for a computer programming language,and the one of those who popularized the idea of machine-independent programming languages, which led to the development of COBOL, one of the first high-level programming languages. She is credited with popularizing the term "debugging" for fixing computer glitches (inspired by an actual moth removed from the computer). Owing to the breadth of her accomplishments and her naval rank, she is sometimes referred to as "Amazing Grace".
 The U.S. Navy Arleigh Burke class guided-missile destroyer USS Hopper (DDG-70) is named for her, as was the Cray XE6 "Hopper" supercomputer at NERSC.