add prerequisistes

src/lab/Prerequisites.html

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 <h1 class="text-h2-lightblue">Computer Systems Organization lab</h1><div>
-<p>
-</p><ul>
-<li>Java allows you to play online virtual labs.</li>
-<li>The Java 3D API enables the creation of three-dimensional graphics applications and Internet-based 3D applets. It provides high-level constructs for creating and manipulation 3D geometry and building the structures used in rendering that geometry. With this software, you can efficiently define and render very large virtual worlds.</li>
-<li>Adobe Flash (formerly Macromedia Flash) is a multimedia platform used to add animation, video, and interactivity to web pages. </li>
-<li><a href="installJava.html">Click here for steps to install Java and Icedtea plugin</a></li>
-<li><a href="installFlash.html">Click here for steps to install flash plugin</a></li>
-</ul>
-<p></p>
+
+<p> - This lab requires few Software Dependencies to run the Simulations </p>
+<ol>
+<li> Adobe Flash Plugin, Java1.7</li>
+<li> Browsers Firefox 50 and it's below versions, internet explorer.</li>
+<li> IcedTea Plugin for Linux Operating System.</li>
+</ol>
+<p> - We recommend the following for the smooth running of these simulations</p>
+<ol>
+<li> Install Adobe Flash Plugin - This will enable you to run the experiments that need Flash support. Please follow the  <a href="documents/installFlash.html">link</a> to install the Flash Plugin</li>
+<li> Install VirtualBox - Virtual Labs offers a free download of a customized VirtualBox with the required pre installed all the software dependencies(Java 1.7, IcedTea Plugin and Adobe Flash Plugin). Please follow the <a href="https://docs.google.com/document/d/1mX0YMtFk4Dxn_vQBJmUJ8pIOPE2hVf6AscJMdLWd9k8/edit#">link</a> to download, install and use VirtualBox for Virtual Labs.</li>
+</ol>
+
+
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