The exec（执行，主任参谋） was making a presentation to the company board: "Computers have allowed us to cut costs," he explained. "We expect even more dramatic improvements as computers become increasingly self-sufficient." He unveiled（公开，揭幕） a large chart showing a man, a dog, and a computer. "Here is our organization plan of the future.""What kind of plan is that?" demanded a board member."It's simple," replied the exec. "The man's job is to feed the dog. The dog's job is to bite the man if he touches the computer."