A curved-back shield shape, outputting true when any input is true.
Also known as: OR gate, Shield shape logic, Curved back gate
The shield-shaped OR gate outputs true when any input is. Its curved back is the entire difference from the AND gate's flat one, which is a small visual difference for opposite logic.
Outputs a true signal when at least one of its inputs is true, implementing inclusive disjunction in hardware.
Contexts: Technical drawing, Electrical equipment
Differs from the AND gate only in having a curved rather than straight back, which is a small visual distinction carrying opposite logic.
Contexts: Technical drawing, Electrical equipment
A shape with a concave curved back and two convex curves meeting at a point on the right, with input lines entering the back and one output leaving the point.
Curved back against flat back, for opposite logic.
The basic logic gate symbol set.
The same operation in hardware and in formal logic.