< KS3 Computing < Logic 
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 |
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