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glossary:logicgates

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Table of Contents

Logic Gates

Overview

This page gives a brief description of the principal logic gates, a detailed description will be found in Wikipedia by clicking on each of the images. A more detailed overview is in Wikipedia here.

AND

AND gateBoolean operator which is used to join two statements so that the final statement is true only if the individual statements are all true. Thus (X>1)AND(X<2) is true if X is between 1 and 2.

OR

OR gateBoolean operator which is used to join two statements so that the final statement is true if either of the individual statements are true.

NAND

NAND gateBoolean operator which is used to join two statements so that the final statement is false only if the individual statements are all true. Inverted AND.

NOR

NOR gateBoolean operator which is used to join two statements so that the final statement is false if either of the individual statements are true. Inverted OR.

XOR

XOR gateExclusive OR. Boolean operator which is used to join two statements so that the final statement is true if one or other of the individual statements are true but not both.

NOT

NOT gateIn digital logic, an inverter or NOT gate is a logic gate which implements logical negation.

glossary/logicgates.1366106386.txt.gz · Last modified: 2014/11/11 13:28 (external edit)