I know this may seem like a simple question to some of you experts out there, but I was thinking today about how much computers have advanced and how they allow us to make substantial progress in design and simulations and stuff. Actually, what got me thinking about it was in my propulsion book they mentioned that computers have "opened up wonderful possibilities for translating basic knowledge, and the results of test experience, into better designs." My question is this - If human knowledge and capacity invented the computer, how is it that they can have such immense memory capacity and intelligence over the human brain, and why does it continue to improve? What internal processes go on within a computer that are independent of human invention or conceptualization? I guess a more colloquial way of asking this is how do computers "think" and "do", and at a level far beyond human capacity?