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AND gate

AND gate

1 3.4
A circuit that gives an output only when all inputs are on
  • noun
  • Specialized
translation icon : puerta AND
  • In digital electronics, an AND gate requires all of its inputs to be true for the output to be true.

Like an an AND gate, for instance, is a gate that you would actually etch into a chip here.

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Examples

  • We've got an AND gate here and an OR gate in this chip here.

  • OK, so to build this out, we need some XOR gates, some AND gates, and some inverters.

  • So although Y star is still there, since it's an AND gate, Z goes down, right?

  • So for and gate, the output is A&B.

  • And the outputs of the AND gates are odd like this.

  • It has the output coming back around into an and gate and then two and gates going into our inverter.

  • Actually, they've got "not(x) and y" and "not(y) and x" on the two other exits to the AND gate.

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  • The output of the AND gate is high only when both inputs are high.

  • When building a logic circuit, you must connect the inputs to the AND gate correctly to ensure proper functionality.

Synonyms

AND circuit
vsAND gate
  • Specialized
4.7

An electronic circuit that sends a signal only when all inputs are on

is the specific digital logic name for that same input-only output behavior

Surface Forms

AND gate singular
AND gates plural

Morphology

and + gate

The meaning is compositionally derived: 'and' denotes conjunction (requiring all conditions) and 'gate' denotes a device that implements logic, so together they denote a device that only activates when all inputs are present. This is a regular, predictable naming pattern in technical language (and in other languages), so a learner who knows the constituent meanings can infer the MWE's meaning.

Etymology

AND gate comes from the simple picture of a gate that only opens when all keys are turned, because AND means 'all must be true'. That's why the circuit gives an output only when all inputs are 'present'.