Pioneers

Grace Hopper

Citation Formats

General Reference

Computing Atlas. "Grace Hopper." Accessed August 30, 2026. https://dev-computing.interactiveatlas.org/pioneers/grace-hopper.

APA Style

Computing Atlas. (n.d.). Grace Hopper. Retrieved August 30, 2026, from https://dev-computing.interactiveatlas.org/pioneers/grace-hopper

BibTeX

@misc{computingatlas-grace-hopper,
  author = {Computing Atlas},
  title = {Grace Hopper},
  year = {2026},
  url = {https://dev-computing.interactiveatlas.org/pioneers/grace-hopper},
  note = {Accessed August 30, 2026}
}

Grace Hopper was an American computer scientist and United States Navy rear admiral who helped develop the A 0 System, among the first compilers, and whose FLOW MATIC programming language directly influenced COBOL, the business programming language that grew out of a committee she strongly advocated for and shaped. She was an early and vocal proponent of writing programs in English like language rather than machine code, on the then contested belief that programs should be understandable and portable across different computers.

Facts

Birth Year

1906 1

Death Year

1992 1

Nationality

American 1

Cross-Tradition Connections

Associated With

Compiler

Her team wrote the A-0 compiler in May 1952 and coined the term compiler.

Source Wikipedia: Compiler

Harvard Mark I

Source Wikipedia: Harvard Mark I

In Field

Software Engineering

Source The Innovators: How a Group of Hackers, Geniuses, and Geeks Created the Digital RevolutionWalter Isaacson

Influenced

COBOL

COBOL was designed by a CODASYL committee, not by Hopper alone, but its design drew heavily on her earlier FLOW MATIC language and she was an influential advocate throughout its development.

Source The Innovators: How a Group of Hackers, Geniuses, and Geeks Created the Digital RevolutionWalter Isaacson

Invented

Compiler

Grace Hopper's A-0 System (1952), which translated symbolic mathematical code into machine code, is widely credited as one of the first compilers; she went on to lead work on the COBOL compiler.

Source The Innovators: How a Group of Hackers, Geniuses, and Geeks Created the Digital RevolutionWalter Isaacson

Sources

1. The Innovators: How a Group of Hackers, Geniuses, and Geeks Created the Digital Revolution

Walter Isaacson, Simon and Schuster, 2014

Wikipedia: Grace Hopper

Wikimedia FoundationEarly life and education

Quote, Early life and education