Logic and the engineer

Present-day electrical engineers make frequent use of the concepts of logic in the design and operation of computers and automatic control systems. Some of these ideas date back more than 2000 years, when logic was concerned with ideas expressed in words. In the 19th century, mathematicians found it possible to work out logical problems by means of algebra. A new look was given to the subject in the 20th century with the use of electical circuitry to perform logic operations.