{"id":168,"date":"2022-09-28T11:22:00","date_gmt":"2022-09-28T18:22:00","guid":{"rendered":"http:\/\/jmcristobal.com.mx\/?p=168"},"modified":"2022-09-03T10:32:17","modified_gmt":"2022-09-03T17:32:17","slug":"what-is-a-network-and-its-components","status":"publish","type":"post","link":"https:\/\/d1gdqjscev06po.cloudfront.net\/es\/2022\/09\/28\/what-is-a-network-and-its-components\/","title":{"rendered":"Qu\u00e9 es una red de computadoras y sus componentes"},"content":{"rendered":"<p>Una red de computadoras no es m\u00e1s que un grupo de ordenadores (PC's) o dispositivos similares conectados para acceder y compartir recursos de la red, tal como archivos, espacios de almacenamiento, impresoras, telefon\u00eda IP, correo electr\u00f3nico, entre otros servicios.<\/p>\n\n\n\n<p>Un ejemplo de una red es la siguiente:<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-full\"><img loading=\"lazy\" width=\"606\" height=\"239\" src=\"https:\/\/jmcristobal.com\/wp-content\/uploads\/2016\/12\/VSO-Esquema-de-una-red-basica_eng.png\" alt=\"\" class=\"wp-image-1949\" srcset=\"https:\/\/d1gdqjscev06po.cloudfront.net\/wp-content\/uploads\/2016\/12\/VSO-Esquema-de-una-red-basica_eng.png 606w, https:\/\/d1gdqjscev06po.cloudfront.net\/wp-content\/uploads\/2016\/12\/VSO-Esquema-de-una-red-basica_eng-300x118.png 300w, https:\/\/d1gdqjscev06po.cloudfront.net\/wp-content\/uploads\/2016\/12\/VSO-Esquema-de-una-red-basica_eng-18x7.png 18w\" sizes=\"(max-width: 606px) 100vw, 606px\" \/><\/figure><\/div>\n\n\n\n<p>Cada ordenador de una red se denomina host o dispositivo final. Para entender como se establece la comunicaci\u00f3n entre los diferentes dispositivos de una red, es necesario conocer los componentes o elementos de ella, por ejemplo, si desde una computadora realizo una solicitud para un recurso de la red, se enviar\u00e1n una serie de mensajes los cuales se convertir\u00e1n a un formato acorde para ser transmitidos. Absolutamente todos los mensajes son convertidos a se\u00f1ales digitales codificados en c\u00f3digo binario (bits) y posteriormente enviados a trav\u00e9s de todos los componentes de la red.<\/p>\n\n\n\n<p>Los componentes o elementos de la red son:<\/p>\n\n\n\n<ul><li>Dispositivos .- Son elementos f\u00edsicos, es decir hardware y que generalmente son visibles dentro de la red, as\u00ed tambi\u00e9n podemos clasificarlos en:<br><ul><li>Dispositivos finales. - tambi\u00e9n llamados host, son los equipos que regularmente inician la comunicaci\u00f3n en la red y que utilizamos constantemente en nuestra vida diaria, por ejemplo: computadoras personales, laptops, smartphones, tablets, impresoras, c\u00e1maras, consolas de videojuegos, SmartTV's, servidores, tel\u00e9fonos IP, etc.<br><\/li><li>Dispositivos intermedios. - estos dispositivos son menos visibles para las personas en general, debido a que ellos interact\u00faan detr\u00e1s de los dispositivos finales, los dispositivos intermedios son los que conectan a los host o dispositivos finales a la red, adem\u00e1s tienen la capacidad de conectar dos o m\u00e1s redes para crear una internetwork (internetwork es la interconexi\u00f3n de dos o m\u00e1s redes diferentes). Algunos ejemplos de dispositivos de red intermediarios son: switches, puntos de acceso inal\u00e1mbrico, routers, modems, firewalls, etc.<\/li><\/ul><\/li><\/ul>\n\n\n\n<ul><li>Medios de Red.- Son los que se encargan de transmitir el mensaje de un dispositivo de red a otro, actualmente los medios mas utilizados son: cobre, fibra \u00f3ptica y transmisi\u00f3n inal\u00e1mbrica. Anteriormente mencionamos que los mensajes se convierten en bits antes de enviarlos por la red, cuando los mensajes ya han sido convertidos por un dispositivo final o intermedio a c\u00f3digo binario, estos se codifican seg\u00fan el medio existente para enviarlo a trav\u00e9s de la red y as\u00ed llegar a su destino, en el caso del cobre la codificaci\u00f3n es a trav\u00e9s de impulsos el\u00e9ctricos, las transmisiones por fibra \u00f3ptica con impulsos de luz y las inal\u00e1mbricas por medio de ondas electromagn\u00e9ticas. En el caso de los medios inal\u00e1mbricos la transmisi\u00f3n se lleva acabo por medio de ondas invisibles, caso contrario al cobre y fibra \u00f3ptica a trav\u00e9s de un cable f\u00edsico.<br>&#8211;<\/li><li>Servicios.- Son los programas de comunicaci\u00f3n, denominados software, que se ejecutan en los dispositivos conectados a la red. Los servicios incluyen una gran cantidad de aplicaciones de red comunes que utilizan las personas a diario, como los servicios de correo electr\u00f3nico, foros, chats, mensajer\u00eda instant\u00e1nea, entre otros.<br><br>Hablando acerca de dispositivos finales, as\u00ed tambi\u00e9n, los dispositivos intermedios ejecutan servicios no visibles para el usuario final pero que son de vital importancia, por ejemplo los switches conmutan a trav\u00e9s de software la comunicaci\u00f3n entre dos o m\u00e1s dispositivos finales, calidad de servicio (QoS) y m\u00e1s, por otra parte el router tiene la funci\u00f3n de encontrar la ruta m\u00e1s cercana para una llegar o alcanzar una red diferente, y como hemos dicho anteriormente, estos procesos son menos obvios para nosotros, pero son cr\u00edticos para el funcionamiento de las redes.<\/li><\/ul>\n\n\n\n<p>Tomando como referencia la im\u00e1gen anterior, a continuaci\u00f3n se muestra gr\u00e1ficamente los elementos de una red:<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-full\"><img loading=\"lazy\" width=\"628\" height=\"247\" src=\"https:\/\/jmcristobal.com\/wp-content\/uploads\/2016\/12\/VSO-Componentes-de-una-red_eng.png\" alt=\"\" class=\"wp-image-1950\" srcset=\"https:\/\/d1gdqjscev06po.cloudfront.net\/wp-content\/uploads\/2016\/12\/VSO-Componentes-de-una-red_eng.png 628w, https:\/\/d1gdqjscev06po.cloudfront.net\/wp-content\/uploads\/2016\/12\/VSO-Componentes-de-una-red_eng-300x118.png 300w, https:\/\/d1gdqjscev06po.cloudfront.net\/wp-content\/uploads\/2016\/12\/VSO-Componentes-de-una-red_eng-18x7.png 18w\" sizes=\"(max-width: 628px) 100vw, 628px\" \/><\/figure><\/div>\n\n\n\n<p>Para finalizar este tema, coincidimos en que un servicio de red debe de estar acompa\u00f1ado de dispositivos y medios para llevar a cabo la comunicaci\u00f3n, pero hay un punto muy importante que nos hace falta mencionar y es que los dispositivos interconectados a trav\u00e9s de medios para proporcionar servicios deben de tener reglas, de caso contrario los dispositivos no sabr\u00edan como procesar la informaci\u00f3n. Esas reglas se denominada protocolos y son las que utilizan los dispositivos de red para comunicarse entre s\u00ed.<\/p>\n\n\n\n<p>Actualmente el est\u00e1ndar utilizado en la industria de las redes es el TCP\/IP (Transmission Control Protocol\/Internet Protocol ) y por ende el principal de Internet. El TCP\/IP es el encargado de formatear, direccionar y enrutar nuestros mensajes para que lleguen a su destino correcto.<\/p>","protected":false},"excerpt":{"rendered":"<p>A computer network is a group of computers (PCs) or similar devices connected to access and share network resources, such as files, <\/p>","protected":false},"author":2,"featured_media":1922,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[595,248],"tags":[599,600,598],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v19.13 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>What is a network and its components? - JMCristobal<\/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:\/\/jmcristobal.com\/es\/2022\/09\/28\/what-is-a-network-and-its-components\/\" \/>\n<meta property=\"og:locale\" content=\"es_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"What is a network and its components? 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