I took computer science in high school to meet boys. And I did. Nerdy boys. It was the era of paper-tape readers and punch cards. I learned basic programming in Basic and tried to learn Fortran, but didn’t get very far. In one class, Salem, Mass. students worked together to design a “bird vending machine” that “used small microcontrollers to train crows to find loose coins in the surrounding neighborhoods . . . then deposit them in a slot in exchange for food.” “Computer scie