Added solution

tomclose · tomclose · commit 56be438f16a5 · 2013-06-30T23:53:42.000+01:00
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+<!DOCTYPE html >
+<html>
+<head>
+    <title>A bit about the internet</title>
+</head>
+
+<body>
+<h1 id='a_bit_about_the_internet'>A bit about the internet</h1>
+
+<h2 id='url'>URL</h2>
+
+<p>URL stands for <em>Uniform Resource Locator</em>. It contains serveral different parts, including:</p>
+
+<ul>
+<li>the <strong>protocol</strong>: e.g. http, https, ftp</li>
+
+<li>the <strong>host</strong>: e.g. <a href="http://www.facebook.com">www.facebook.com</a>, <a href="http://www.bbc.co.uk">www.bbc.co.uk</a></li>
+
+<li>the <strong>path</strong>: e.g. /news/local, /john.smith.95</li>
+</ul>
+
+<h2 id='dns'>DNS</h2>
+
+<p>DNS stands for Domain Name System. You buy a domain name from a registrar (e.g. <a href="http://www.123-reg.co.uk/">123-reg</a>, <a href="http://uk.godaddy.com/">GoDaddy</a>). They arrange for your server&#8217;s IP address to be added next to the domain name on a DNS server, so that people can find your site. This process can take a couple of days to spread out over the entire internet, as DNS servers take time to update one another using a &#8216;gossiping&#8217; mechanism.</p>
+
+<h2 id='serverside_vs_clientside_technologies'>Server-side vs. Client-side technologies</h2>
+
+<h3 id='clientside'>Client-side</h3>
+
+<p>Client-side technologies run in your web browser (e.g Firefox, Google Chrome or Internet Explorer). The three main client-side technologies are:</p>
+
+<ol>
+<li>HTML</li>
+
+<li>CSS</li>
+
+<li>Javascript</li>
+</ol>
+
+<h3 id='serverside'>Server-side</h3>
+
+<p>Server-side technologies run on the server. There are many more possibilities here.</p>
+
+<table>
+    <thead>
+        <tr><th>Technology</th><th>Description</th></tr>
+    </thead>
+    <tbody>
+        <tr>
+            <td>Ruby on Rails</td>
+            <td>A web development framework built on the Ruby programming language.</td>
+        </tr>
+        <tr>
+            <td>Node.js</td>
+            <td>A web development framework built using javascript.</td>
+        </tr>
+        <tr>
+            <td>MySQL</td>
+            <td>A common open-source database.</td>
+        </tr>
+        <tr>
+            <td>php</td>
+            <td>A programming language used for the majority of dynamic sites in the early 2000s</td>
+        </td>
+    </tbody>
+</table>
+
+<p>Here&#8217;s a picture of a server:</p> <img src="http://4.bp.blogspot.com/-HC2Z0-z1xX8/T0DoGxfqoUI/AAAAAAAAAXM/67dXAbEckj0/s320/server10trays_640.jpg">
+</body></html>
