Admin: more prose

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diff --git a/src/admin/1_intro.xml b/src/admin/1_intro.xml
index 5885381..82fed18 100644
--- a/src/admin/1_intro.xml
+++ b/src/admin/1_intro.xml
@@ -328,4 +328,27 @@
             <para>Adélie Linux supports many different hardware platforms, allowing you to truly use your hardware your way.  All Adélie Linux packages are tested on all tier 1 architectures before being released.  From your dusty old Intel x86 notebook, to your POWER workstation, to your ARM tablet, you can ensure you are getting the most from your computers by using Adélie Linux on them.</para>
         </section>
     </section>
+    <section>
+        <title>Familiarising yourself with Adélie</title>
+        <para>Now it's time to go over a brief run-down of the day-to-day administration of an Adélie system.  These will be covered with more depth in later chapters.</para>
+        <section>
+            <title>The shell environment</title>
+            <para>The <firstterm>shell environment</firstterm>, also called a terminal or console, is an interface where you type commands in to a command processor (the <firstterm>shell</firstterm>), and view the results of the command on your screen.  Windows users may know this environment as a "Command Prompt".  The shell environment is an essential part of administering any Linux system.  Adélie Linux is designed to make the shell environment easy to use while still providing you the ability to view and edit nearly every detail about your system.</para>
+            <para>By default, Adélie Linux uses the Z shell (zsh) as the default shell.  This shell has many unique and powerful features, but by default, it works very similar to the widely-used Bash shell.  When you start your shell, you will be greeted with a prompt similar to:</para>
+            <para><prompt><replaceable>yourname</replaceable> on <replaceable>computer-name</replaceable> ~ %</prompt></para>
+            <para>The prompt contains your username, the name of the computer you are currently logged in to, and your current directory.  The "~" represents your home directory, where your personal files and settings are stored.  This "~" will change as you move around the directories on your computer's hard disk.  For example, if you type <command>cd Documents</command> to change to the Documents directory in your home directory, your prompt will then show:</para>
+            <para><prompt><replaceable>yourname</replaceable> on <replaceable>computer-name</replaceable> ~/Documents %</prompt></para>
+            <para>Your computer's name is always shown to you in the prompt.  This way, if you connect remotely to another computer, you will be able to easily tell where the commands you type are running.</para>
+        </section>
+        <section>
+            <title>Package management</title>
+            <para>All software in Adélie Linux is provided to you in the form of <firstterm>packages</firstterm>.  A "software package" is a single distribution of computer software that fulfils a purpose.  For example, AbiWord, a word processor, is provided in the "abiword" package.  When you want to install or uninstall software from your computer, you add (to install) or delete (to uninstall) packages.</para>
+            <para>Adélie Linux uses the <firstterm>APK</firstterm> package manager.  The APK package manager is very fast, and performs well even on computers with limited resources.  To install a package, you run <command>apk add <varname>PACKAGE</varname></command>, where PACKAGE is the name of the software.  To uninstall a package, you run <command>apk del <varname>PACKAGE</varname></command>.</para>
+        </section>
+        <section>
+            <title>Service management</title>
+            <para>Adélie Linux allows you to run software in the background, called "services" or "daemons".  These include network services (such as a Web server or print server), a task scheduler (also known as "<command>at</command>" and "<command>cron</command>"), automatic virus scanner, or any other useful background task.  By default, Adélie Linux uses a service manager called <firstterm>OpenRC</firstterm>.</para>
+            <para>You can manage services using the <command>service</command> command.  For example, to restart the <command>lighttpd</command> service, you run <command>service lighttpd restart</command>.</para>
+        </section>
+    </section>
 </chapter>