5. Ada was one of the first visionaries who saw where it was going.
http://en.wikipedia.org/wiki/Ada_Lovelace She and Babbage, ALONE in the world in their level of vision at the time. It wasn't till way later that the WWII guys, Shannon Turing and the rest laid down the foundations for real, but they did so with their work divided: The women were being deployed to crack the math problems:
http://www.topsecretrosies.com/Top_Secret_Rosies/Home.html For the same reason they were given the job of telephone operators: They were seen as better at it. This left in the men in the realm of more abstract maths, where the breakthroughs came from.