"Grace Hopper and UNIVAC" by Unknown (Smithsonian Institution) -
Flickr: Grace Hopper and UNIVAC. Licensed under CC BY 2.0 via Wikimedia Commons -
Harvard Mark I
In 1954
Grace Hopper was the only person in the world able to program the
complier (software) for the UNIVAC computer in time for the Navy.
Grace Murray Hopper
was born December 9, 1906 and died January 1, 1992. She was an
American computer scientist (one of the first in the world) and
United States Navy rear admiral. She was one of the first
programmers of the Harvard Mark I computer in 1944.
She invented the first compiler for a computer
programming She is credited with popularizing the term “debugging"
for fixing computer glitches (inspired by an actual moth removed
from the computer).
Here's a picture of her notebook page showing the first computer bug.