 from accessing memory we're not supposed to?</a></h2>
<p>As I mentioned, modern CPUs have already some definition of basic concepts. Some examples of this is:</p>
<ul>
<li>Virtual memory </li>
<li>Page table</li>
<li>Page fault</li>
<li>Exceptions</li>
<li><a href="https://en.wikipedia.org/wiki/Protection_ring">Privelege level</a></li>
</ul>
<p>Exactly how this works will differ depending on the exact CPU so we'll treat them 
in general terms here.</p>
<p>Most modern CPUs however has a MMU (Memory Manageme