Ada Lovelace was the world’s first computer programmer all the way back in the mid-1800s, writing the world’s first computer program in 1842.
She became an important factor in the work of Charles Babbage, inventor of the famed Difference Engine, the early precursor to the calculator that was based on a finite number of possible calculations.
She helped write the translation and then wrote the supplemental information to accompany an Italian mathematician’s in-depth analysis of Babbage’s work on his next project, the Analytical Engine.
This machine of Babbage’s is now recognized as the earliest model for the computer, and Ada’s own writings became the first algorithm in that they serve to make the machine function based on the written “program.”
Her work included an algorithm that would make the machine compute Bernoulli numbers.
This writing has marked Lovelace as the first computer programmer in history.
Unfortunately, Babbage did not finish designing and building the machine, so her program was never tested.