IT lexicon Programming Grace Hopper (person)

Grace Hopper (person)

Programming På svenska → Updated: 2026-07-30
More info
Born
Died
Known for
The first compiler, the work behind COBOL
Nationality
American

The rear admiral who pushed through the idea that programs could be written in something resembling English — and built the compiler that proved it.

Hopper worked during the war on the Harvard Mark I and in 1952 wrote A-0, the first system to translate symbolic code into machine code. The reception was cool; the prevailing view was that computers could only do arithmetic. Her FLOW-MATIC language then became the basis for COBOL, which made business programming readable and which still runs a large share of the world's banking systems.

She popularised the word bug after a colleague taped a moth, found in a relay of the Mark II in 1947, into the logbook with the note "first actual case of bug being found". She left the Navy as a rear admiral at the age of 79. The slug grace-hopper in this wiki is Nvidia's superchip, named after her.

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