+<li>Program - stored instructions for execution by computer.
+</li>
+
+<li>Process - Currently running program.
+<ul class="org-ul">
+<li>Process is self contained. Has a full copy of program code and
+every dependent library.
+
+<ul class="org-ul">
+<li>Memory used by processes is content addressed/deduplicated at
+low level in the system.
+</li>
+
+<li>This allows:
+<ul class="org-ul">
+<li>Upgrading software installed in the system without breaking
+already running processes.
+</li>
+
+<li>Easier migration of running processes between physical
+computers.
+</li>
+
+<li>Possibility to suspend/resume arbitrary processes to permament
+storage.
+</li>
+
+<li>Possibility checkpoint/revert running process.
+</li>
+
+<li>Possibility to clone/branch running process.
+</li>
+</ul>
+</li>
+</ul>
+</li>
+</ul>
+</li>
+</ul>
+</div>
+</div>
+
+<div id="outline-container-sec-4" class="outline-2">
+<h2 id="sec-4"><span class="section-number-2">4</span> Frequently Given Answers</h2>
+<div class="outline-text-2" id="text-4">
+<ul class="org-ul">