Logic Elements and Circuits

  • G. D. Bishop
Part of the Macmillan Technician Series book series (TCC)


Electronic logic circuits are used extensively in calculators, computers, telephone exchanges and all applications where two-state systems are involved. A two-state system has only two levels at any one point, these are referred to as ‘on’ or ‘off’, ‘yes’ or ‘no’, ‘up’ or ‘down’, and so on. Logic elements are the small electronic subsystems that perform the logic decisions of NOT, AND, OR, and so on, which are incorporated inside any piece of digital electronic equipment. This chapter introduces the two-state system and then uses it to describe simple logic gates and their circuits.


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© G. D. Bishop 1977

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  • G. D. Bishop

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