Steve Jobs

by Walter Isaacson

and we want it out of one piece of metal so that the coefficients of expansion are all the same.’ And he had to figure out how to do it.” Most pieces had to be made from scratch, which meant that Paul had to create custom tools and dies. His son was impressed, but he rarely went to the machine shop. “It would have been fun if he had gotten to teach me how to use a mill and lathe. But unfortunately I never went, because I was more interested in electronics.” One summer Paul took Steve to Wisconsin to visit the family’s dairy farm. Rural life did not appeal to Steve, but one image stuck with him. He saw a calf being born, and he was amazed when the tiny animal struggled up within minutes and began to walk. “It was not something she had learned, but it was instead hardwired into her,” he recalled. “A human baby couldn’t do that. I found it remarkable, even though no one else did.” He put it in hardware-software terms: “It was as if