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puerta AND in context | images
puer·ta AND  Feminine - Noun - Singular
  1. AND gate; Synonyms: circuito y

 

From Wikipedia, the free encyclopedia
Una 'puerta lógica', o 'compuerta lógica', es un dispositivo electrónico que es la expresión física de un operador booleano en la lógica de conmutación. Cada puerta lógica consiste en una red de dispositivos interruptores que cumple las condiciones booleanas para el operador particular. Son esencialmente circuitos de conmutación integrados en un chip. Claude Elwood Shannon experimentaba con relés o interruptores electromagnéticos para conseguir las condiciones de cada compuerta lógica, por ejemplo, para la función booleana 'Y' (AND) colocaba interruptores en circuito serie, ya que con uno solo de éstos que tuviera la condición «abierto», la salida de la compuerta Y sería = 0, mientras que para la implementación de una compuerta 'O' (OR), la conexión de los interruptores tiene una configuración en circuito paralelo. La tecnología microelectrónica actual permite la elevada integración de transistores actuando como conmutadores en redes lógicas dentro de un pequeño circuito integrado. El chip de la CPU es una de las máximas expresiones de este avance tecnológico. En nanotecnología se está desarrollando el uso de una compuerta lógica molecular, que haga posible la miniaturización de circuitos.

 

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