875071 Portrait of Augusta Ada King (1815 - 1852), Countess of Lovelace (colour engraving). by Chalon, Alfred-Edward (1780-1860); Private Collection; (add.info.: Augusta Ada King, Countess of Lovelace (10 December 1815 ??27 November 1852), born Augusta Ada Byron and now commonly known as Ada Lovelace, was an English mathematician and writer chiefly known for her work on Charles Babbage\'s early mechanical general-purpose computer, the Analytical Engine. Her notes on the engine include what is recognised as the first algorithm intended to be processed by a machine. Because of this, she is often described as the world\'s first computer programmer.); Prismatic Pictures ; Swiss, out of copyright.