The use of computers in three categories of engineering design operations: drawing, theory, and applications. The use of CRT displays for contemporary projects is probably the most exciting development in design automation. In theoretical design activities, preliminary design engineers may eventually use all aspects of computerized design as adjuncts to their work. At present, parts that can be defined mathematically can be designed by means of the computer. Applied to engineering computations, computers provide a means of refining a design by the constant testing and retesting of certain elements. They decrease the possibility of conceptual errors in design by providing a capability for investigating many alternative courses and the use of simulation models. Technological problems remain, however, and cost advantages are hard to prove because engineering cost records are ill-defined. Competitive pressures will be a paramount force in the increasing automation of engineering. 15 pp. Ref.