This paper surveys the types of computer usage, both current and planned, in science education. The authors state that they are concerned not with the scientist with computer experience, but rather with telling those without computer teaching experience about the possibilities and prospects. In their discussion, the authors distinguish at least five modes of usage, each embracing several types of output: alphameric or graphic, paper or film, and temporary or permanent. the five modes are: (1) producer of materials, (2) administrator, (3) tutor, (4) simulator, and (5) calculator. It is as a calculator that the authors feel the computer demands the most understanding and participation of the student, and the computer should have its greatest impact in science teaching. Various facilities utilized are summarized under these headings: interactive, semi-interactive, and non-interactive. Several graphic display systems are described as interactive systems. The conclusion discusses the authors' concepts of how computer usage might alter the style and content of science education. (TS)