A graphics terminal designed for use as a remote computer input/output terminal is described. Although the terminal is intended for use in teaching applications, it has several features which make it useful in many other computer terminal applications. These features include: a 10-inch square plasma display panel, permanent storage of information on the display screen without flicker, self-contained character and line generators, an optional random-access audio response unit, and a random-access slide projector. The terminal can send and receive data on voice grade telephone circuits. The unit has a character-writing speed of 180 characters per second and the capability of displaying up to 2048 characters on the screen. It has a line-drawing speed of more than 600 inches per second and a character repertoire of 256 characters. The operating modes of the terminal, including commands, are explained, as are possible sources of and the output word format for terminal-generated data. (JK)