{"id":923,"date":"2012-10-10T12:04:14","date_gmt":"2012-10-10T16:04:14","guid":{"rendered":"https:\/\/www.cavsi.com\/blog\/?p=923"},"modified":"2012-10-10T12:04:14","modified_gmt":"2012-10-10T16:04:14","slug":"que-es-una-tarjeta-de-interfaz-de-red-nic","status":"publish","type":"post","link":"https:\/\/www.cavsi.com\/espanol\/blog\/que-es-una-tarjeta-de-interfaz-de-red-nic\/","title":{"rendered":"\u00bfQu\u00e9 es una Tarjeta de Interfaz de Red (NIC)?"},"content":{"rendered":"

Las tarjetas de interfaz de red se conocen tambi\u00e9n como\u00a0adaptadores de red, adaptador LAN o\u00a0tarjetas\u00a0NIC por su significado en ingles: Network Interface Card. \u00a0 Un adaptador de red es el dispositivo m\u00e1s importante en la creaci\u00f3n de redes.<\/p>\n

La tarjeta de red est\u00e1 conectada f\u00edsicamente al cable de red, que a su vez es responsable de recibir y transmitir datos en el nivel f\u00edsico.<\/p>\n

\"\"<\/p>\n

Una tarjeta NIC transmite datos a la red y recibe datos desde la misma. Funciona a nivel del protocolo de enlace de datos. Una tarjeta de red proporciona un punto de uni\u00f3n para un tipo espec\u00edfico de cable, tales como cable coaxial, cable de par trenzado, o cable de fibra \u00f3ptica. Las tarjetas de interfaz para redes inal\u00e1mbricas tienen t\u00edpicamente una antena para la comunicaci\u00f3n con una estaci\u00f3n base. Cada tarjeta de interfaz de red tiene una direcci\u00f3n IP \u00fanica.<\/p>\n

El hardware moderno de un adaptador de red se puede encontrar en diferentes formas. Adem\u00e1s de la tradicional tarjeta Ethernet PCI, algunos adaptadores de red son dispositivos PCMCIA o dispositivos USB. En la mayoria de los ordenadores port\u00e1tiles,\u00a0los adaptadores de red estan integrados en el chip de circuitos de la tarjeta madre.<\/p>\n

Hay cuatro t\u00e9cnicas que se utilizan para la transferencia de datos de una tarjeta de red:<\/p>\n

    \n
  1. El sondeo es donde la CPU examina el estado de los perif\u00e9ricos bajo control de programa.<\/li>\n
  2. E \/ S programada es donde el microprocesador avisa al perif\u00e9rico designado por la aplicaci\u00f3n de su direcci\u00f3n a la direcci\u00f3n de bus del sistema.<\/li>\n
  3. Por interrupciones de E \/ S es donde las alertas perif\u00e9ricos del microprocesador que est\u00e1 preparado para transferir datos.<\/li>\n
  4. DMA o acceso directo a memoria es cuando el controlador se encarga del sistema de bus y transfiere los datos de la tarjeta de red a una ubicaci\u00f3n de memoria, reduciendo as\u00ed la carga de la CPU.<\/li>\n<\/ol>\n","protected":false},"excerpt":{"rendered":"

    Las tarjetas de interfaz de red se conocen tambi\u00e9n como\u00a0adaptadores de red, adaptador LAN o\u00a0tarjetas\u00a0NIC por su significado en ingles: Network Interface Card. \u00a0 Un adaptador de red es el dispositivo m\u00e1s importante en la creaci\u00f3n de redes.<\/p>\n

    La tarjeta de red est\u00e1 conectada f\u00edsicamente al cable de red, que a su vez es responsable de recibir y transmitir datos en el nivel f\u00edsico.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"nf_dc_page":"","footnotes":""},"categories":[194],"tags":[236],"class_list":["post-923","post","type-post","status-publish","format-standard","hentry","category-redes-computadoras","tag-adaptadores-de-red"],"yoast_head":"\n\u00bfQu\u00e9 es una Tarjeta de Interfaz de Red (NIC)? - CAVSI<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.cavsi.com\/espanol\/blog\/que-es-una-tarjeta-de-interfaz-de-red-nic\/\" \/>\n<meta property=\"og:locale\" content=\"es_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u00bfQu\u00e9 es una Tarjeta de Interfaz de Red (NIC)? - CAVSI\" \/>\n<meta property=\"og:description\" content=\"Las tarjetas de interfaz de red se conocen tambi\u00e9n como\u00a0adaptadores de red, adaptador LAN o\u00a0tarjetas\u00a0NIC por su significado en ingles: Network Interface Card. \u00a0 Un adaptador de red es el dispositivo m\u00e1s importante en la creaci\u00f3n de redes. 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