I knew that computers, when they talk, they don’t talk the way I am now—continuously. They go blast! and they’re quiet for a while. A little while later, they suddenly come up and blast again. And you can’t afford to dedicate a communications connection to something which is almost never talking, but when it wants to talk it wants immediate access. So we had to not use the telephone network, which was designed for continuous talking—the circuit switching network—but something else.
