1.0GCSE Computer Science Theoryhttps://learnlearn.uk/gcsecslearnlearnadminhttps://learnlearn.uk/gcsecs/author/learnlearnadmin/rich600338<blockquote class="wp-embedded-content" data-secret="smq8SoRKmC"><a href="https://learnlearn.uk/gcsecs/hexadecimal/">Hexadecimal</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://learnlearn.uk/gcsecs/hexadecimal/embed/#?secret=smq8SoRKmC" width="600" height="338" title="“Hexadecimal” — GCSE Computer Science Theory" data-secret="smq8SoRKmC" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script> /*! This file is auto-generated */ !function(d,l){"use strict";l.querySelector&&d.addEventListener&&"undefined"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!/[^a-zA-Z0-9]/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret="'+t.secret+'"]'),o=l.querySelectorAll('blockquote[data-secret="'+t.secret+'"]'),c=new RegExp("^https?:$","i"),i=0;i<o.length;i++)o[i].style.display="none";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute("style"),"height"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):"link"===t.message&&(r=new URL(s.getAttribute("src")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener("message",d.wp.receiveEmbedMessage,!1),l.addEventListener("DOMContentLoaded",function(){for(var e,t,s=l.querySelectorAll("iframe.wp-embedded-content"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute("data-secret"))||(t=Math.random().toString(36).substring(2,12),e.src+="#?secret="+t,e.setAttribute("data-secret",t)),e.contentWindow.postMessage({message:"ready",secret:t},"*")},!1)))}(window,document); //# sourceURL=https://learnlearn.uk/gcsecs/wp-includes/js/wp-embed.min.js </script> Why do we use it hexadecimal? Binary is very difficult for humans to read (especially larger numbers) but computers work in binary, so any usage where you need to be able to inspect and edit the binary directly (such as in machine code/ assembly language) then humans need to be able to read the binary… Read More »https://learnlearn.uk/gcsecs/wp-content/uploads/sites/8/2018/01/denary-example.png?_t=1598666746