{"id":795,"date":"2019-01-15T09:03:25","date_gmt":"2019-01-15T09:03:25","guid":{"rendered":"http:\/\/learnlearn.uk\/gcsecs\/?page_id=795"},"modified":"2019-01-15T10:15:58","modified_gmt":"2019-01-15T10:15:58","slug":"transmission-media","status":"publish","type":"page","link":"https:\/\/learnlearn.uk\/gcsecs\/transmission-media\/","title":{"rendered":"Transmission Media"},"content":{"rendered":"<p>\n<div class=\"arconix-tabs-horizontal\"><ul class=\"arconix-tabs\"><li data-arconix-icon=\" \" data-arconix-color=\" \" class=\"arconix-tab tab-Introduction\"><a class=\"\" href=\"#tab-Introduction\">Introduction<\/a><\/li>\n<li data-arconix-icon=\" \" data-arconix-color=\" \" class=\"arconix-tab tab-CopperCable\"><a class=\"\" href=\"#tab-CopperCable\">Copper Cable<\/a><\/li>\n<li data-arconix-icon=\" \" data-arconix-color=\" \" class=\"arconix-tab tab-Ethernet\"><a class=\"\" href=\"#tab-Ethernet\">Ethernet<\/a><\/li>\n<li data-arconix-icon=\" \" data-arconix-color=\" \" class=\"arconix-tab tab-FiberOptic\"><a class=\"\" href=\"#tab-FiberOptic\">Fiber Optic<\/a><\/li>\n<li data-arconix-icon=\" \" data-arconix-color=\" \" class=\"arconix-tab tab-WIFIBluetooth\"><a class=\"\" href=\"#tab-WIFIBluetooth\">WIFI \/ Bluetooth<\/a><\/li>\n<li data-arconix-icon=\" \" data-arconix-color=\" \" class=\"arconix-tab tab-Satellite\"><a class=\"\" href=\"#tab-Satellite\">Satellite<\/a><\/li>\n<li data-arconix-icon=\" \" data-arconix-color=\" \" class=\"arconix-tab tab-Resources\"><a class=\"\" href=\"#tab-Resources\">Resources<\/a><\/li><\/ul>\n<div class=\"arconix-panes\"><div class=\"arconix-pane pane-Introduction\">\n<h3>Transmission Media<\/h3>\n<p>In order for data to be sent from device to data must be <strong>physically transported<\/strong> using some form of transmission media. The data can be transported either <strong>wired<\/strong> or<strong> wirelessly<\/strong>.<\/p>\n<p>All devices connected to the Internet are connected using a combination of technologies, both wired and wireless.<\/p>\n<div id=\"attachment_807\" style=\"width: 160px\" class=\"wp-caption alignnone\"><img aria-describedby=\"caption-attachment-807\" decoding=\"async\" loading=\"lazy\" class=\"size-thumbnail wp-image-807\" src=\"https:\/\/learnlearn.uk\/gcsecs\/wp-content\/uploads\/sites\/8\/2019\/01\/Submarine_cable_map_umap-150x150.png\" alt=\"\" width=\"150\" height=\"150\" srcset=\"https:\/\/learnlearn.uk\/gcsecs\/wp-content\/uploads\/sites\/8\/2019\/01\/Submarine_cable_map_umap-150x150.png 150w, https:\/\/learnlearn.uk\/gcsecs\/wp-content\/uploads\/sites\/8\/2019\/01\/Submarine_cable_map_umap-300x300.png 300w\" sizes=\"(max-width: 150px) 100vw, 150px\" \/><p id=\"caption-attachment-807\" class=\"wp-caption-text\">World Submarine Internet Cables Map<\/p><\/div>\n<p>&nbsp;<\/p>\n<\/div>\n<div class=\"arconix-pane pane-CopperCable\">\n<h3>Copper Cable &#8211; 1Mbps (Legacy &#8211; probably won&#8217;t be in the exam)<\/h3>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"alignnone size-full wp-image-794\" src=\"https:\/\/learnlearn.uk\/gcsecs\/wp-content\/uploads\/sites\/8\/2018\/01\/copper-wire-pair-transmission-media.jpg\" alt=\"\" width=\"349\" height=\"255\" srcset=\"https:\/\/learnlearn.uk\/gcsecs\/wp-content\/uploads\/sites\/8\/2018\/01\/copper-wire-pair-transmission-media.jpg 349w, https:\/\/learnlearn.uk\/gcsecs\/wp-content\/uploads\/sites\/8\/2018\/01\/copper-wire-pair-transmission-media-300x219.jpg 300w\" sizes=\"(max-width: 349px) 100vw, 349px\" \/><\/p>\n<p><span style=\"font-weight: 400;\">Invented in 1844 to carry Morse code transmission.\u00a0<\/span><span style=\"font-weight: 400;\">Later used as the transmission medium for telephone calls and therefore widely adopted. Electrical current is passed along a single pair of wires.<\/span><\/p>\n<p><b>Advantages<\/b><\/p>\n<ul>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Simple, cheap and quick to install<\/span><\/li>\n<\/ul>\n<p><b>Disadvantages<\/b><\/p>\n<ul>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Low data transmission speed due to interference<\/span><\/li>\n<\/ul>\n<\/div>\n<div class=\"arconix-pane pane-Ethernet\">\n<h3>Ethernet &#8211; 1Gbps (Current Industry Standard)<\/h3>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"alignnone size-full wp-image-796\" src=\"https:\/\/learnlearn.uk\/gcsecs\/wp-content\/uploads\/sites\/8\/2019\/01\/ethernet-cable.png\" alt=\"\" width=\"246\" height=\"290\" \/><img decoding=\"async\" loading=\"lazy\" class=\"alignnone size-full wp-image-797\" src=\"https:\/\/learnlearn.uk\/gcsecs\/wp-content\/uploads\/sites\/8\/2019\/01\/transmission-media-ethernet-cables.jpg\" alt=\"\" width=\"275\" height=\"183\" \/><\/p>\n<p><span style=\"font-weight: 400;\">Electrical current passed along cables. Uses multiple twisted pairs to increased transmission rate and lower interference.<\/span><\/p>\n<p><b>Advantages<\/b><\/p>\n<ul>\n<li><span style=\"font-weight: 400;\">Much faster and more reliable<\/span><\/li>\n<\/ul>\n<p><b>Disadvantages<\/b><\/p>\n<ul>\n<li><span style=\"font-weight: 400;\">More expensive than copper.<\/span><\/li>\n<li><span style=\"font-weight: 400;\">Required replacement of existing hardware.<\/span><\/li>\n<\/ul>\n<\/div>\n<div class=\"arconix-pane pane-FiberOptic\">\n<h3>Fiber Optic Transmission &#8211; 1PBps<\/h3>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"alignnone size-full wp-image-798\" src=\"https:\/\/learnlearn.uk\/gcsecs\/wp-content\/uploads\/sites\/8\/2019\/01\/fiber-optical-cable.jpg\" alt=\"\" width=\"275\" height=\"183\" \/><\/p>\n<p><span style=\"font-weight: 400;\">Data is sent using laser light bursts along a glass filament.<\/span><\/p>\n<p><strong>Advantages<\/strong><\/p>\n<ul>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Must faster transmission rates<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">More difficult to intercept<\/span><\/li>\n<\/ul>\n<p><strong>Disadvantages<\/strong><\/p>\n<ul>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">More expensive than Ethernet.<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Wires aren&#8217;t as flexible as Ethernet cables.<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Requires new and expensive hardware<\/span><\/li>\n<\/ul>\n<\/div>\n<div class=\"arconix-pane pane-WIFIBluetooth\">\n<h3>WIFI\/Blueooth &#8211; 54Mbps<\/h3>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"alignnone wp-image-799\" src=\"https:\/\/learnlearn.uk\/gcsecs\/wp-content\/uploads\/sites\/8\/2019\/01\/radio-waves.gif\" alt=\"\" width=\"506\" height=\"249\" \/><\/p>\n<p><span style=\"font-weight: 400;\">Transmits data through the air using radio waves.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Advantages<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">No wires required so quicker and easier to set up.<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Allows for mobile computers<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">Disadvantages<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Highly susceptible to interference when multiple devices connected or when you turn on the microwave&#8230;<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">More vulnerable to data interception.<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Limited range (100M Max)<\/span><\/li>\n<\/ul>\n<\/div>\n<div class=\"arconix-pane pane-Satellite\">\n<p><a href=\"https:\/\/learnlearn.uk\/gcsecs\/wp-content\/uploads\/sites\/8\/2019\/01\/satellite.gif\"><img decoding=\"async\" loading=\"lazy\" class=\"alignnone  wp-image-808\" src=\"https:\/\/learnlearn.uk\/gcsecs\/wp-content\/uploads\/sites\/8\/2019\/01\/satellite.gif\" alt=\"\" width=\"606\" height=\"364\" \/><\/a><\/p>\n<h3>Satellite<\/h3>\n<p>Also uses radio waves, though the signal can be sent hundreds of miles, instead of just a few hundred metres.<\/p>\n<p>Geostationary satellites relay transmission data from a computer to the internet(or other network) .<\/p>\n<p><strong>Advantages<\/strong><\/p>\n<ul>\n<li>Can be used in very remote places where no other connection is available (outside of landline \/ mobile reception)<\/li>\n<\/ul>\n<p><strong>Disadvantages<\/strong><\/p>\n<ul>\n<li>Can be very expensive to use<\/li>\n<li>Data transfer rates are limited (1 &#8211; 2 Mbps)<\/li>\n<li>Due to the signal be relayed via the satellite connections often have a high latency (ping) so not suitable for gaming<\/li>\n<li>Highly sensitive to weather conditions.<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<\/div>\n<div class=\"arconix-pane pane-Resources\">\n<h3>Resources<\/h3>\n<p><a href=\"https:\/\/docs.google.com\/presentation\/d\/12hxvX4o8jkdj6kLk5JHcvKSUzgL7N8GCl973SljCFnU\/edit?usp=sharing\">Google Slides<\/a><\/p>\n<p><a href=\"https:\/\/play.kahoot.it\/#\/k\/68fc0666-23eb-4beb-8cc5-e43fa4d699df\">Lesson Review Kahoot<\/a><\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<\/div><\/div><\/div>\n<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>&nbsp;<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"neve_meta_sidebar":"","neve_meta_container":"","neve_meta_enable_content_width":"","neve_meta_content_width":0,"neve_meta_title_alignment":"","neve_meta_author_avatar":"","neve_post_elements_order":"","neve_meta_disable_header":"","neve_meta_disable_footer":"","neve_meta_disable_title":""},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.6 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Transmission Media - GCSE Computer Science Theory<\/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:\/\/learnlearn.uk\/gcsecs\/transmission-media\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Transmission Media - GCSE Computer Science Theory\" \/>\n<meta property=\"og:description\" content=\"&nbsp;\" \/>\n<meta property=\"og:url\" content=\"https:\/\/learnlearn.uk\/gcsecs\/transmission-media\/\" \/>\n<meta property=\"og:site_name\" content=\"GCSE Computer Science Theory\" \/>\n<meta property=\"article:modified_time\" content=\"2019-01-15T10:15:58+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/learnlearn.uk\/gcsecs\/wp-content\/uploads\/sites\/8\/2019\/01\/Submarine_cable_map_umap-150x150.png\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Estimated reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/learnlearn.uk\/gcsecs\/transmission-media\/\",\"url\":\"https:\/\/learnlearn.uk\/gcsecs\/transmission-media\/\",\"name\":\"Transmission Media - GCSE Computer Science Theory\",\"isPartOf\":{\"@id\":\"https:\/\/learnlearn.uk\/gcsecs\/#website\"},\"datePublished\":\"2019-01-15T09:03:25+00:00\",\"dateModified\":\"2019-01-15T10:15:58+00:00\",\"breadcrumb\":{\"@id\":\"https:\/\/learnlearn.uk\/gcsecs\/transmission-media\/#breadcrumb\"},\"inLanguage\":\"en-GB\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/learnlearn.uk\/gcsecs\/transmission-media\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/learnlearn.uk\/gcsecs\/transmission-media\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"OCR GCSE Computer Science Home\",\"item\":\"https:\/\/learnlearn.uk\/gcsecs\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Transmission Media\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/learnlearn.uk\/gcsecs\/#website\",\"url\":\"https:\/\/learnlearn.uk\/gcsecs\/\",\"name\":\"GCSE Computer Science Theory\",\"description\":\"Just another My Blog site\",\"publisher\":{\"@id\":\"https:\/\/learnlearn.uk\/gcsecs\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/learnlearn.uk\/gcsecs\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"en-GB\"},{\"@type\":\"Organization\",\"@id\":\"https:\/\/learnlearn.uk\/gcsecs\/#organization\",\"name\":\"GCSE Computer Science Theory\",\"url\":\"https:\/\/learnlearn.uk\/gcsecs\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-GB\",\"@id\":\"https:\/\/learnlearn.uk\/gcsecs\/#\/schema\/logo\/image\/\",\"url\":\"https:\/\/learnlearn.uk\/gcsecs\/wp-content\/uploads\/sites\/8\/2019\/02\/LearnLearnLogowhite.png\",\"contentUrl\":\"https:\/\/learnlearn.uk\/gcsecs\/wp-content\/uploads\/sites\/8\/2019\/02\/LearnLearnLogowhite.png\",\"width\":710,\"height\":98,\"caption\":\"GCSE Computer Science Theory\"},\"image\":{\"@id\":\"https:\/\/learnlearn.uk\/gcsecs\/#\/schema\/logo\/image\/\"}}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Transmission Media - GCSE Computer Science Theory","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/learnlearn.uk\/gcsecs\/transmission-media\/","og_locale":"en_GB","og_type":"article","og_title":"Transmission Media - GCSE Computer Science Theory","og_description":"&nbsp;","og_url":"https:\/\/learnlearn.uk\/gcsecs\/transmission-media\/","og_site_name":"GCSE Computer Science Theory","article_modified_time":"2019-01-15T10:15:58+00:00","og_image":[{"url":"https:\/\/learnlearn.uk\/gcsecs\/wp-content\/uploads\/sites\/8\/2019\/01\/Submarine_cable_map_umap-150x150.png"}],"twitter_card":"summary_large_image","twitter_misc":{"Estimated reading time":"2 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/learnlearn.uk\/gcsecs\/transmission-media\/","url":"https:\/\/learnlearn.uk\/gcsecs\/transmission-media\/","name":"Transmission Media - GCSE Computer Science Theory","isPartOf":{"@id":"https:\/\/learnlearn.uk\/gcsecs\/#website"},"datePublished":"2019-01-15T09:03:25+00:00","dateModified":"2019-01-15T10:15:58+00:00","breadcrumb":{"@id":"https:\/\/learnlearn.uk\/gcsecs\/transmission-media\/#breadcrumb"},"inLanguage":"en-GB","potentialAction":[{"@type":"ReadAction","target":["https:\/\/learnlearn.uk\/gcsecs\/transmission-media\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/learnlearn.uk\/gcsecs\/transmission-media\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"OCR GCSE Computer Science Home","item":"https:\/\/learnlearn.uk\/gcsecs\/"},{"@type":"ListItem","position":2,"name":"Transmission Media"}]},{"@type":"WebSite","@id":"https:\/\/learnlearn.uk\/gcsecs\/#website","url":"https:\/\/learnlearn.uk\/gcsecs\/","name":"GCSE Computer Science Theory","description":"Just another My Blog site","publisher":{"@id":"https:\/\/learnlearn.uk\/gcsecs\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/learnlearn.uk\/gcsecs\/?s={search_term_string}"},"query-input":"required name=search_term_string"}],"inLanguage":"en-GB"},{"@type":"Organization","@id":"https:\/\/learnlearn.uk\/gcsecs\/#organization","name":"GCSE Computer Science Theory","url":"https:\/\/learnlearn.uk\/gcsecs\/","logo":{"@type":"ImageObject","inLanguage":"en-GB","@id":"https:\/\/learnlearn.uk\/gcsecs\/#\/schema\/logo\/image\/","url":"https:\/\/learnlearn.uk\/gcsecs\/wp-content\/uploads\/sites\/8\/2019\/02\/LearnLearnLogowhite.png","contentUrl":"https:\/\/learnlearn.uk\/gcsecs\/wp-content\/uploads\/sites\/8\/2019\/02\/LearnLearnLogowhite.png","width":710,"height":98,"caption":"GCSE Computer Science Theory"},"image":{"@id":"https:\/\/learnlearn.uk\/gcsecs\/#\/schema\/logo\/image\/"}}]}},"rttpg_featured_image_url":null,"rttpg_author":{"display_name":"learnlearnadmin","author_link":"https:\/\/learnlearn.uk\/gcsecs\/author\/learnlearnadmin\/"},"rttpg_comment":0,"rttpg_category":null,"rttpg_excerpt":"&nbsp;","_links":{"self":[{"href":"https:\/\/learnlearn.uk\/gcsecs\/wp-json\/wp\/v2\/pages\/795"}],"collection":[{"href":"https:\/\/learnlearn.uk\/gcsecs\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/learnlearn.uk\/gcsecs\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/learnlearn.uk\/gcsecs\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/learnlearn.uk\/gcsecs\/wp-json\/wp\/v2\/comments?post=795"}],"version-history":[{"count":5,"href":"https:\/\/learnlearn.uk\/gcsecs\/wp-json\/wp\/v2\/pages\/795\/revisions"}],"predecessor-version":[{"id":810,"href":"https:\/\/learnlearn.uk\/gcsecs\/wp-json\/wp\/v2\/pages\/795\/revisions\/810"}],"wp:attachment":[{"href":"https:\/\/learnlearn.uk\/gcsecs\/wp-json\/wp\/v2\/media?parent=795"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}