1977 | OriginalPaper | Chapter
Review of Combinational-logic Techniques
Authors : L. F. Lind, J. C. C. Nelson
Published in: Analysis and Design of Sequential Digital Systems
Publisher: Macmillan Education UK
Included in: Professional Book Archive
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Any logic device (or indeed, system) can be viewed as a processing unit. Certain inputs are applied, and certain outputs then appear. These inputs and outputs can take many different forms. For example, they can be voltages, currents, pressure, light, etc., or a mixture of these variables. In the majority of logic devices currently available, the inputs and outputs are voltages. For definiteness, all inputs and outputs in the ensuing discussion will be assumed to be voltages unless stated otherwise.