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Communications of the ACM

Communications of the ACM

An interactive computer system using graphical flowchart input

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An interactive computer system operational on a graphical computer terminal is described. This system was designed to demonstrate a method of programming by computer interpretation of a flowchart. The user draws a description of a sampled-data system and specifies an original input signal on a display oscilloscope. This graphical description is transmitted to a large scale computer. The design is simulated, and a graphic representation of the processed signal is returned to the scope. A successful design may require numerous modifications of the original design. A graphical interactive system provides an environment to perform this iterative process efficiently and effectively.

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