{"id":69,"date":"2020-11-04T02:33:02","date_gmt":"2020-11-04T02:33:02","guid":{"rendered":"http:\/\/learnlearn.uk\/igcsecs\/?page_id=69"},"modified":"2022-01-25T07:18:40","modified_gmt":"2022-01-25T07:18:40","slug":"introduction-to-binary","status":"publish","type":"page","link":"https:\/\/learnlearn.uk\/igcsecs\/introduction-to-binary\/","title":{"rendered":"Introduction to Binary"},"content":{"rendered":"<div class=\"responsive-tabs\">\n<h2 class=\"tabtitle\">Starter<\/h2>\n<div class=\"tabcontent\">\n\n<h3>Starter &#8211; Morse Code<\/h3>\n<p>Morse code stater activity<\/p>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"alignnone size-full wp-image-51\" src=\"https:\/\/learnlearn.uk\/binary\/wp-content\/uploads\/sites\/11\/2017\/01\/morse-code.png\" alt=\"morse-code\" width=\"461\" height=\"412\" \/><\/p>\n<p>&nbsp;<\/p>\n<a href='https:\/\/docs.google.com\/document\/d\/11546SmSaJl9Ywfyjkx_qN7heQiMujPZBSsj7F-Topgk\/edit?usp=sharing' class='arconix-button arconix-button-medium arconix-button-gray' target=\"_blank\" >Morse Code worksheet link<\/a>\n\n<\/div><h2 class=\"tabtitle\">What is binary?<\/h2>\n<div class=\"tabcontent\">\n\n<div class=\"arconix-column-two-thirds\">\n<h3>What is binary?<\/h3>\n<p>Binary is any system that consists of only two forms.<\/p>\n<p>For example:<\/p>\n<div class=\"arconix-list\" data-arconix-icon=\"fa-chevron-circle-right\" data-arconix-color=\"black\">\n<ul>\n<li>1 or 0<\/li>\n<li>True or False<\/li>\n<li>On or Off<\/li>\n<li>Voltage or No Voltage<\/li>\n<li>Light or Dark<\/li>\n<li>Black or White<\/li>\n<\/ul>\n<\/div>\n<\/div>\n<div class=\"arconix-column-one-third\">\n<p><img decoding=\"async\" loading=\"lazy\" class=\"alignnone wp-image-21 size-medium\" src=\"https:\/\/learnlearn.uk\/binary\/wp-content\/uploads\/sites\/11\/2017\/01\/binary-code-475664_960_720-300x212.jpg\" alt=\"Topic 1 Introduction to binary\" width=\"300\" height=\"212\" \/><\/p>\n<\/div>\n\n<\/div><h2 class=\"tabtitle\">Why use binary?<\/h2>\n<div class=\"tabcontent\">\n\n<h3>Why do computers use binary?<\/h3>\n<div class=\"nv-iframe-embed\">\n<div class=\"container-lazyload preview-lazyload container-youtube js-lazyload--not-loaded\"><a href=\"https:\/\/www.youtube.com\/watch?v=k-5jpns0uTA\" class=\"lazy-load-youtube preview-lazyload preview-youtube\" data-video-title=\"Why do computers use binary?\" title=\"Play video &quot;Why do computers use binary?&quot;\">https:\/\/www.youtube.com\/watch?v=k-5jpns0uTA<\/a><noscript>Video can&#8217;t be loaded because JavaScript is disabled: <a href=\"https:\/\/www.youtube.com\/watch?v=k-5jpns0uTA\" title=\"Why do computers use binary?\">Why do computers use binary? (https:\/\/www.youtube.com\/watch?v=k-5jpns0uTA)<\/a><\/noscript><\/div>\n<\/div>\n<p>&nbsp;<\/p>\n<p><em>YouTube blocked at school? <a href=\"https:\/\/drive.google.com\/file\/d\/1Qgm0NwsVEJMnFllOT4lH8qO2160KnhBv\/view?usp=sharing\">Watch the Google Drive version instead.<\/a><\/em><\/p>\n<h4>Summary<\/h4>\n<ul>\n<li>Binary data can be transmitted easily and reliably.<\/li>\n<li>Binary data can be stored and read very easily and reliably.<\/li>\n<li>Computers use circuits that can only be on one of 2 states &#8211; on or off, these work very well with binary calculations.<\/li>\n<li>The input voltage in to computers is not very stable, so only a system that use voltage\/no voltage would be reliable.<\/li>\n<\/ul>\n<h3>What do the binary numbers represent?<\/h3>\n<p>Depending on what data is being stored, binary above could represent:<\/p>\n<ul>\n<li>Text \/ Numbers<\/li>\n<li>Images<\/li>\n<li>Sound<\/li>\n<li>Instructions<\/li>\n<\/ul>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"alignnone size-medium wp-image-57\" src=\"https:\/\/learnlearn.uk\/binary\/wp-content\/uploads\/sites\/11\/2017\/01\/computer-binary-300x212.jpg\" alt=\"computer-binary\" width=\"300\" height=\"212\" \/><\/p>\n<p>&nbsp;<\/p>\n\n<\/div><h2 class=\"tabtitle\">Bits, Bytes,Nibbles<\/h2>\n<div class=\"tabcontent\">\n\n<p><strong>Bit \u00a0 &#8211; e.g. 0<\/strong><\/p>\n<p>Each individual 1 or 0 is known as a <strong>bit<\/strong>.<\/p>\n<p>Here are three bits &#8211; 110<\/p>\n<p><strong>Byte &#8211; e.g. 11001100<\/strong><\/p>\n<p>Each group of 8 bits is known as a <strong>Byte<\/strong><\/p>\n<p>Here\u00a0is a<strong> stream<\/strong> of Bytes:<\/p>\n<p>01010011 01101011 01111001 01110010 01101001 01101101 00100000 01101001 01110011 00100000 01100001 01110111 01100101 01110011 01101111 01101101 01100101 00100001<\/p>\n<p><strong>Nibble &#8211; e.g. 1111<\/strong><\/p>\n<p>A nibble is <strong>4 bits<\/strong>, or half a<strong> Byte<\/strong>.<\/p>\n<p>Here is a nibble &#8211; 1101<\/p>\n<p>&nbsp;<\/p>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"alignnone size-medium wp-image-59\" src=\"https:\/\/learnlearn.uk\/binary\/wp-content\/uploads\/sites\/11\/2017\/01\/binary-code-507785_960_720-300x212.jpg\" alt=\"binary-code-507785_960_720\" width=\"300\" height=\"212\" \/><\/p>\n<p>&nbsp;<\/p>\n\n<\/div><h2 class=\"tabtitle\">Resources<\/h2>\n<div class=\"tabcontent\">\n\n<h3>Resources<\/h3>\n<p><strong>Past Paper Questions<\/strong><\/p>\n<p><a href=\"https:\/\/pastpapers.papacambridge.com\/viewer\/caie\/cambridge-upper-secondary-igcse-computer-science-0478-2015-jun-0478-s15-qp-11-pdf\">0478\/11 Paper 1 Theory May\/June 2015 &#8211; Qn 9 &#8211; binary hex decimal conversions<\/a><\/p>\n<p>File Sizes &#8211;\u00a0<a href=\"https:\/\/pastpapers.papacambridge.com\/viewer\/caie\/cambridge-upper-secondary-igcse-computer-science-0478-2017-jun-0478-s17-qp-11-pdf\">0478\/11 &#8211; Paper 1 Theory May\/June 2017 &#8211; Qn 3<\/a><\/p>\n<p>&nbsp;<\/p>\n<p><a href=\"https:\/\/pastpapers.papacambridge.com\/viewer\/caie\/cambridge-upper-secondary-igcse-computer-science-0478-2018-may-june-0478-s18-qp-11-pdf\">0478\/11 &#8211; Paper 1 Theory May\/June 2018\u00a0 Qn1 &#8211; Great review of the unit<\/a><\/p>\n<p>&nbsp;<\/p>\n<\/div><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Starter &#8211; Morse Code Morse code stater activity &nbsp; Why do computers use binary? https:\/\/www.youtube.com\/watch?v=k-5jpns0uTAVideo can&#8217;t be loaded because JavaScript is disabled: Why do computers use binary? (https:\/\/www.youtube.com\/watch?v=k-5jpns0uTA) &nbsp; YouTube blocked at school? Watch the Google Drive version instead. Summary Binary data can be transmitted easily and reliably. Binary data can be stored and read&hellip;&nbsp;<a href=\"https:\/\/learnlearn.uk\/igcsecs\/introduction-to-binary\/\" class=\"\" rel=\"bookmark\">Read More &raquo;<span class=\"screen-reader-text\">Introduction to Binary<\/span><\/a><\/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":70,"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>Introduction to Binary | IGCSE Computer Science | Learnlearn.uk<\/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\/igcsecs\/introduction-to-binary\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Introduction to Binary | IGCSE Computer Science | Learnlearn.uk\" \/>\n<meta property=\"og:description\" content=\"Starter &#8211; Morse Code Morse code stater activity &nbsp; Why do computers use binary? https:\/\/www.youtube.com\/watch?v=k-5jpns0uTAVideo can&#8217;t be loaded because JavaScript is disabled: Why do computers use binary? 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(https:\/\/www.youtube.com\/watch?v=k-5jpns0uTA) &nbsp; YouTube blocked at school? Watch the Google Drive version instead. Summary Binary data can be transmitted easily and reliably. 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(https:\/\/www.youtube.com\/watch?v=k-5jpns0uTA) &nbsp; YouTube blocked at school? Watch the Google Drive version instead. Summary Binary data can be transmitted easily and reliably. Binary data can be stored and read&hellip;&nbsp;Read&hellip;","_links":{"self":[{"href":"https:\/\/learnlearn.uk\/igcsecs\/wp-json\/wp\/v2\/pages\/69"}],"collection":[{"href":"https:\/\/learnlearn.uk\/igcsecs\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/learnlearn.uk\/igcsecs\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/learnlearn.uk\/igcsecs\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/learnlearn.uk\/igcsecs\/wp-json\/wp\/v2\/comments?post=69"}],"version-history":[{"count":11,"href":"https:\/\/learnlearn.uk\/igcsecs\/wp-json\/wp\/v2\/pages\/69\/revisions"}],"predecessor-version":[{"id":804,"href":"https:\/\/learnlearn.uk\/igcsecs\/wp-json\/wp\/v2\/pages\/69\/revisions\/804"}],"wp:attachment":[{"href":"https:\/\/learnlearn.uk\/igcsecs\/wp-json\/wp\/v2\/media?parent=69"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}