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or gate
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The OR gate, is a basic logic gate that implements logical disjunction.

Functionality

The OR gate outputs a HIGH if at least one of its inputs is HIGH; otherwise it outputs a LOW. The OR gate can be expressed as \( Q = A \lor B = A + B \).

OR Gate
A B Q
0 0 0
0 1 1
1 0 1
1 1 1
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