
Photo: James S. Davis, Public domain, via Wikimedia Commons
Who She Is:
Grace Hopper was a U.S. Navy rear admiral and computer scientist who pioneered computer programming in the mid-1900s. She invented the first compiler, a tool that translates written instructions into machine language, making it possible for more people to learn programming. She was also one of the first to use the term “debugging” after finding a moth stuck in a computer.
Why She Matters:
Hopper believed computers should be easier to use and worked tirelessly to make programming more accessible. Her efforts led to the development of programming languages that have shaped modern software. Her story shows how persistence and vision can make technology more accessible and valuable to everyone.
Learn More About Grace Hopper
Go deeper with these hand-picked resources. Each one is selected by our team of educators to connect kids to this career through real stories and hands-on learning.

Grace Hopper and the Invention of the Information Age (Lemelson Center Studies in Invention and Innovation series)
Why We Picked It
This deeply researched biography reveals how Grace Hopper's vision and persistence helped create the first computer compilers, fundamentally changing how humans communicate with machines.

Grace Hopper: Queen of Computer Code (People Who Shaped Our World, 1)
Why We Picked It
This vibrant picture book celebrates the brilliant mathematician who taught computers to speak our language through humor, creativity, and relentless problem-solving.

Grace Hopper: Admiral of the Cyber Sea
Why We Picked It
This biography dives deep into the life of the visionary computer scientist and Navy admiral who helped make programming accessible and shaped the digital age.

