Human-factors engineering: Experiments in teleterminal design: The successful marriage of a computer terminal and a telephone depend on the unit's size and shape, as well as on how it communicates with the user

The telephone is a very handy device, as is the computer terminal, so why not combine the two in a single unit - a teleterminal? Why not indeed; tests of a combination telephone and computer terminal showed it to be potentially at least twice as useful and convenient as either device alone.