Ada Byron, Countess of Lovelace, was a British mathematician who lived between 1815-1852. She was a pioneer of computer programming. Computer programming is really important. It helps scientists build spacecraft. It also helps scientists figure out things such as the distance to Mars, the weight of the sun, and really difficult math problems.
Byron published a book about the first computer, which was made by Charles Babbage.
Byron designed a program that gave instructions to a computer. She also created the computer law that says a computer cannot have a mind of its own.
Because of Byron's pioneering efforts in the computer era, the United States Department of Defense named a computer programming language (ADA) after her in 1977.

