How to sign: a door-like movable barrier in a fence or wall
Categories: movable barrier
Within this category: Dipylon gate, head gate, lock-gate, lychgate, portcullis, postern, tailgate, tail gate, tollgate, turnpike, turnstile, wicket
How to sign: a computer circuit with several inputs but only one output that can be activated by particular combinations of inputs
Similiar / Same: logic gate
Categories: computer circuit
Within this category: AND circuit, NAND circuit, OR circuit, X-OR circuit