Watercolor of the world's first computer programer and her mantilla

 Watercolour portrait by Alfred Edward Chalon of Ada King, Countess of Lovelace (1815-1852),  wearing evening dress with a mantilla and holding a fan. 01 Jan 1840

"Augusta Ada King, was the daughter of the great Romantic poet Lord Byron (1788-1824). She was a writer and a trained mathematician. King acquired fame by working with Charles Babbage (1791-1871) on the world's first computer, the Analytical Engine, which could carry out many different types of calculations. She designed several computer programmes for the engine which were coded onto cards with holes punched in them - thus becoming the world's first computer programmer. The universally recognised computer language ADA is named after her."