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KS3 Computing/Logic/OR

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The OR logic symbol for use in diagrams

OR - True when one or more input is true


With the Boolean operator 'OR', the result Q is TRUE when at least one of its inputs are true. So the result is TRUE when either A is true, or B is true, or both are true. The result is FALSE when both A and B are false.


A OR B


A B A OR B
true true true
true false true
false true true
false false false