logic gate
An integrated circuit or other device whose inputs and outputs represent Boolean
or binary values as voltages (TTL uses 0V for False or 0, +5V for True or 1).
Different gates implement different Boolean functions: AND, OR, NAND, NOR (these
may take two or more inputs) NOT (one input), XOR (two inputs). NOT, NAND and
NOR are often constructed from single transistors and the other gates made from
combinations of these basic ones. These functions are all combinatorial logic
functions, i.e. their outputs depend only on their inputs and there is no
internal state. Gates with state, such as latches and flip-flops, are
constructed by feeding some of their outputs back to their inputs.
(1995-02-08)
Nearby terms:
Logic Design Language « logic emulator « Logic for
Computable Functions « logic gate » logic
programming » Logic Replacement Technology » logic
variable
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