Meet Ada Lovelace.
Born Augusta Ada King, Countess of Lovelace, Ada Lovelace was an early 19th century British writer who is considered to be the world’s first computer programmer and has also been hailed by some ad the First Hacker. She was taught science and math by Mary Somerville, a researcher and scientific author. Somerville introduced Ada to Charles Babbage, a British mathematician.
Babbage explained to Ada his idea for the first programmable computer which he called the Analytical Engine. It was a mechanical machine which he imagined to be composed of brass and steam-powered. Babbage worked on the design of the machine for years but could never find funding for the project. He died before the Analytical Machine could be made.
Before his death, Ada translated the the work of an Italian mathematician, Luigi Menabrea, so that Babbage might read it and see if it was applicable to his machine. Ada wrote very detailed methods for how Menabrea’s article could be applied to the Analytical Machine. The notes were very extensive and nearly three times as long as the original document. These notes were considered to be the first computer program.