{"version":"1.0","provider_name":"Edexcel iGCSE Computer Science","provider_url":"https:\/\/learnlearn.uk\/edexcel-igcse-computer-science","author_name":"learnlearnadmin","author_url":"https:\/\/learnlearn.uk\/edexcel-igcse-computer-science\/author\/learnlearnadmin\/","title":"Negative Numbers in Binary - Edexcel iGCSE Computer Science","type":"rich","width":600,"height":338,"html":"<blockquote class=\"wp-embedded-content\" data-secret=\"6u1lk1UM9J\"><a href=\"https:\/\/learnlearn.uk\/edexcel-igcse-computer-science\/negative-numbers-in-binary\/\">Negative Numbers in Binary<\/a><\/blockquote><iframe sandbox=\"allow-scripts\" security=\"restricted\" src=\"https:\/\/learnlearn.uk\/edexcel-igcse-computer-science\/negative-numbers-in-binary\/embed\/#?secret=6u1lk1UM9J\" width=\"600\" height=\"338\" title=\"&#8220;Negative Numbers in Binary&#8221; &#8212; Edexcel iGCSE Computer Science\" data-secret=\"6u1lk1UM9J\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\" class=\"wp-embedded-content\"><\/iframe><script type=\"text\/javascript\">\n\/*! This file is auto-generated *\/\n!function(c,d){\"use strict\";var e=!1,o=!1;if(d.querySelector)if(c.addEventListener)e=!0;if(c.wp=c.wp||{},c.wp.receiveEmbedMessage);else if(c.wp.receiveEmbedMessage=function(e){var t=e.data;if(!t);else if(!(t.secret||t.message||t.value));else if(\/[^a-zA-Z0-9]\/.test(t.secret));else{for(var r,s,a,i=d.querySelectorAll('iframe[data-secret=\"'+t.secret+'\"]'),n=d.querySelectorAll('blockquote[data-secret=\"'+t.secret+'\"]'),o=new RegExp(\"^https?:$\",\"i\"),l=0;l<n.length;l++)n[l].style.display=\"none\";for(l=0;l<i.length;l++)if(r=i[l],e.source!==r.contentWindow);else{if(r.removeAttribute(\"style\"),\"height\"===t.message){if(1e3<(s=parseInt(t.value,10)))s=1e3;else if(~~s<200)s=200;r.height=s}if(\"link\"===t.message)if(s=d.createElement(\"a\"),a=d.createElement(\"a\"),s.href=r.getAttribute(\"src\"),a.href=t.value,!o.test(a.protocol));else if(a.host===s.host)if(d.activeElement===r)c.top.location.href=t.value}}},e)c.addEventListener(\"message\",c.wp.receiveEmbedMessage,!1),d.addEventListener(\"DOMContentLoaded\",t,!1),c.addEventListener(\"load\",t,!1);function t(){if(o);else{o=!0;for(var e,t,r,s=-1!==navigator.appVersion.indexOf(\"MSIE 10\"),a=!!navigator.userAgent.match(\/Trident.*rv:11\\.\/),i=d.querySelectorAll(\"iframe.wp-embedded-content\"),n=0;n<i.length;n++){if(!(r=(t=i[n]).getAttribute(\"data-secret\")))r=Math.random().toString(36).substr(2,10),t.src+=\"#?secret=\"+r,t.setAttribute(\"data-secret\",r);if(s||a)(e=t.cloneNode(!0)).removeAttribute(\"security\"),t.parentNode.replaceChild(e,t);t.contentWindow.postMessage({message:\"ready\",secret:r},\"*\")}}}}(window,document);\n<\/script>\n","description":"Tutorial Video https:\/\/www.youtube.com\/watch?v=4qH4unVtJkEVideo can&#8217;t be loaded because JavaScript is disabled: Twos complement: Negative numbers in binary (https:\/\/www.youtube.com\/watch?v=4qH4unVtJkE) &nbsp; Resources https:\/\/courses.cs.vt.edu\/~csonline\/NumberSystems\/Questions\/TwosComplement\/index.html https:\/\/www.allaboutcircuits.com\/worksheets\/binary-math\/ Handouts here Exam question Examples Mainly focused on the technical side of converting between types. June 2015 paper 11 qn2 June 2016 paper 11 qn2 June 2018 paper 11 qn8c November 2017 11 qn1&hellip;&nbsp;Read More &raquo;"}