1.0IB Computer Sciencehttps://learnlearn.uk/ibcslearnlearnadminhttps://learnlearn.uk/ibcs/author/learnlearnadmin/rich600338<blockquote class="wp-embedded-content" data-secret="F7wyr5YLAm"><a href="https://learnlearn.uk/ibcs/optical-storage-devices/">Optical Storage Devices (CD, DVD, BluRay)</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://learnlearn.uk/ibcs/optical-storage-devices/embed/#?secret=F7wyr5YLAm" width="600" height="338" title="“Optical Storage Devices (CD, DVD, BluRay)” — IB Computer Science" data-secret="F7wyr5YLAm" 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/ibcs/wp-includes/js/wp-embed.min.js </script> Optical Storage Devices Optical-Storage-Devices-Revision-Sheet Optical Storages used to be incredibly popular up until the last couple of years where cloud storage and the rise of video and game streaming services have massively reduced their popularity. Types of optical storage devices: CD Drives  (700MB) DVD Drives  (4.7GB) BluRay Drives (50GB) Optical storage devices offer cheap and… Read More »http://learnlearn.uk/gcsecs/wp-content/uploads/sites/8/2016/05/cd-rom.jpg