Klara Dan von Neumann, Hungarian computer scientist and programmer (died 1963)

Klára Dán von Neumann was a Hungarian-American mathematician, self-taught engineer and computer scientist, noted as one of the first computer programmers. She was the first woman to execute modern-style code on a computer. Dán made significant contributions to the world of programming, including work on the Monte Carlo method, ENIAC, and MANIAC I.