~knitzsche/ubuntu-desktop-course/bug-495146_romanian-pdfs_pdf-filenames-with-lang-and-type

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE chapter PUBLIC "-//OASIS//DTD DocBook XML V4.3//EN"
"http://docbook.org/xml/4.3/docbookx.dtd">
<chapter id="lesson2">
  <title>Exploring the Ubuntu Desktop</title>

<itemizedlist>
    <title>Objectives</title>

    <para>In this lesson, you will learn:</para>
       
       <listitem>
          <para>The highlights of Ubuntu desktop</para>
        </listitem>

        <listitem>
          <para>How to change the default language</para>
        </listitem>

        <listitem>
          <para>How to create a new user account and take advantage of user switching</para>
        </listitem>

        <listitem>
          <para>To add and remove applications</para>
        </listitem>

        <listitem>
          <para>How to enable 3D Desktop effects</para>
        </listitem>

      </itemizedlist> 
      <note userlevel="instructor">
        <title>Instructor Notes:</title>

        <para><emphasis role="italic">All the topics in this lesson are
        mandatory. To familiarise the students with the basic features of the
        new desktop, this lesson should primarily be a hands on
        session.</emphasis></para>
      </note>


  <para>This section serves as a quick tour of the Ubuntu desktop. The course
  will go into more detail in later lessons, but this will give you a taste of
  what's ahead.</para>

  <sect1>
    <title>Ubuntu Desktop Components</title>

    <note userlevel="instructor">
      <title>Instructor Notes:</title>

      <para><emphasis role="italic">Highlight the fact that unlike other
      operating systems, Ubuntu comes with a completely clean desktop, by
      default. Users are free to add icons and files on the desktop according
      to their preferences.</emphasis></para>
    </note>

    <para>GNOME is the default desktop environment for Ubuntu. GNOME (GNU
    Network Object Model Environment) is an international effort to build a
    complete desktop environment—the graphical user interface, which sits on
    top of a computer operating system—entirely from free software. This goal
    includes creating software development frameworks, selecting application
    software for the desktop and working on the programmes which manage
    application launching, file handling and window and task management.
    Community members worldwide contribute to the translation and
    accessibility of the desktop in multiple languages. (Reference: <ulink
    url="http://en.wikipedia.org/wiki/GNOME">http://en.wikipedia.org/wiki/GNOME</ulink>)</para>

    <formalpara>
      <title>Key Desktop Components on Ubuntu</title>

      <para>When you start your computer, the first screen displayed on Ubuntu
      is the logon screen, where you type your user name and password. The
      next screen displayed is the Ubuntu desktop. Ubuntu comes with a
      completely clean desktop background, free of icons by default.</para>
    </formalpara>

    <note userlevel="instructor">
      <title>Instructor Notes:</title>

      <para>Ensure that you browse through each element very quickly because
      more details will be covered in the subsequent lessons.</para>
    </note>

    <figure float="0" id="fig-desktop">
      <title>Default Ubuntu Desktop</title>

      <mediaobject>
        <imageobject>
          <imagedata fileref="images/Lesson03_images_001.png" format="PNG"
                     width="12cm" />
        </imageobject>
      </mediaobject>
    </figure>

    <para>You can arrange icons and files on the desktop to access them
    quickly. If a CD, hard disk or any other external device is connected to
    your computer, Ubuntu automatically displays its icon on the desktop to
    allow easy access to the device.</para>

    <figure float="0">
      <title>Desktop Icons</title>

      <mediaobject>
        <imageobject>
          <imagedata fileref="images/Lesson03_images_002.png" format="PNG"
                     width="4cm" />
        </imageobject>
      </mediaobject>
    </figure>

    <para>At the top and bottom of the desktop are two bars, called
    panels.</para>

    <figure float="0">
      <title>Desktop Panels</title>

      <mediaobject>
        <imageobject>
          <imagedata fileref="images/Lesson03_images_003.png" format="PNG"
                     width="12cm" />
        </imageobject>
      </mediaobject>
    </figure>

    <para>There are three main menus in the left pane of the top panel:
    Applications, Places and System. <itemizedlist>
        <listitem>
          <formalpara>
            <title>Applications:</title>

            <para>This menu contains all the applications installed on your
            computer such as games, music players, Web browsers and e-mail
            clients.</para>
          </formalpara>

          <figure float="0">
            <title>The Application Menu</title>

            <mediaobject>
              <imageobject>
                <imagedata fileref="images/Lesson03_images_004.png"
                           format="PNG" width="4cm" />
              </imageobject>
            </mediaobject>
          </figure>
        </listitem>

        <listitem>
          <formalpara>
            <title>Places:</title>

            <para>This menu provides access to your home directory, external
            devices and network on your computer.</para>
          </formalpara>

          <figure float="0">
            <title>The Places Menu</title>

            <mediaobject>
              <imageobject>
                <imagedata fileref="images/Lesson03_images_005.png"
                           format="PNG" width="4cm" />
              </imageobject>
            </mediaobject>
          </figure>

          <note>
            <title>Note:</title>

            <para>The Home directory is created by default for every user and
            automatically takes the username. It contains all user-specific
            files. In a multi-user system, every user stores personal data in
            a sub-directory of this directory.</para>
          </note>
        </listitem>

        <listitem>
          <formalpara>
            <title>System:</title>

            <para>This menu enables you to change the computer settings. You
            can also access the Ubuntu help system and turn off your computer
            here.</para>
          </formalpara>

          <figure float="0">
            <title>The System Menu</title>

            <mediaobject>
              <imageobject>
                <imagedata fileref="images/Lesson03_images_006.png"
                           format="PNG" width="5cm" />
              </imageobject>
            </mediaobject>
          </figure>
        </listitem>
      </itemizedlist></para>

    <para>By default, there are three shortcut icons next to the menus on the
    top panel: Mozilla Firefox, Evolution and Help. You can create additional
    shortcuts to any applications and place them here for quick access.</para>

    <figure float="0">
      <title>The Shortcut Icons</title>

      <mediaobject>
        <imageobject>
          <imagedata fileref="images/Lesson03_images_007.png" format="PNG"
                     width="12cm" />
        </imageobject>
      </mediaobject>
    </figure>

    <procedure>
      <title>To add a new shortcut icon to the desktop panel:</title>

      <step performance="required">
        <para>Right-click the blank area of the top panel and click <emphasis
        role="strong">Add to Panel</emphasis>. The <emphasis role="strong">Add
        to Panel</emphasis> dialogue box appears.</para>

        <figure float="0">
          <title>Adding a Shortcut Icon</title>

          <mediaobject>
            <imageobject>
              <imagedata fileref="images/Lesson03_images_008.png" format="PNG"
                         width="12cm" />
            </imageobject>
          </mediaobject>
        </figure>
      </step>

      <step performance="required">
        <para>The <emphasis role="strong">Add to Panel</emphasis> dialogue box
        displays a list of applications available on your computer. Select an
        application and click <emphasis role="strong">Add</emphasis> to add it
        to the blank area of the desktop. If you want to launch the programmes
        available on the <emphasis role="strong">Applications</emphasis> menu,
        click <emphasis role="strong">Application Launcher</emphasis>.</para>

        <note>
          <title>Note:</title>

          <para>Alternatively, you can drag an application icon from the Add
          to Panel dialogue box and drop the icon on the panel to create a
          short cut to the application.</para>
        </note>

        <figure float="0">
          <title>Adding Application Launchers</title>

          <mediaobject>
            <imageobject>
              <imagedata fileref="images/Lesson03_images_009.png" format="PNG"
                         width="9cm" />
            </imageobject>
          </mediaobject>
        </figure>
      </step>

      <step performance="required">
        <para>The applications grouped in a category similar to the <emphasis
        role="strong">Applications</emphasis> menu appears. Select an
        application from the available list, and click <emphasis
        role="strong">Add</emphasis>.</para>

        <figure float="0">
          <title>Selecting Applications</title>

          <mediaobject>
            <imageobject>
              <imagedata fileref="images/Lesson03_images_010.png" format="PNG"
                         width="10cm" />
            </imageobject>
          </mediaobject>
        </figure>

        <para>The icon of the selected application will be displayed on the
        blank area of the top panel.</para>

        <figure float="0">
          <title>Adding Application Launchers</title>

          <mediaobject>
            <imageobject>
              <imagedata fileref="images/Lesson03_images_011.png" format="PNG"
                         width="11cm" />
            </imageobject>
          </mediaobject>
        </figure>
      </step>
    </procedure>

    <para>You can change the location of the newly created shortcut icon by
    right-clicking it and selecting <emphasis role="strong">Move</emphasis>.
    Move the icon anywhere on the top panel and left-click the icon to freeze
    its location.</para>

    <figure float="0">
      <title>Moving Shortcut Icons</title>

      <mediaobject>
        <imageobject>
          <imagedata fileref="images/Lesson03_images_012.png" format="PNG"
                     width="6cm" />
        </imageobject>
      </mediaobject>
    </figure>

    <para>Next to the blank area on the top panel (where you can create short
    cuts of the application) is the fast user switch icon. This icon shows the
    current user of your computer. You can click the icon to view other users
    on the computer and switch to another user.</para>

    <note>
      <title>Note:</title>

      <para>You will learn more about fast user switching in the <emphasis
      role="strong">Fast User Switching</emphasis> topic of this
      lesson.</para>
    </note>

    <figure float="0">
      <title>The Fast User Switch Icon</title>

      <mediaobject>
        <imageobject>
          <imagedata fileref="images/Lesson03_images_013.png" format="PNG"
                     width="13cm" />
        </imageobject>
      </mediaobject>
    </figure>

    <para>The System tray contains the
    network and sound icons for quick access to network and sound settings.
    You can check the network configuration of the computer and adjust the
    volume of your computer's speaker.</para>

    <para>The current date and time is displayed next to the System tray. If
    you click the date and time, a calendar is displayed.</para>

    <para>The last icon on the top panel shuts down, restarts, hibernates,
    locks your computer and places it on standby.</para>

    <figure float="0">
      <title>Top Panel Icons</title>

      <mediaobject>
        <imageobject>
          <imagedata fileref="images/Lesson03_images_015.png" format="PNG"
                     width="5cm" />
        </imageobject>
      </mediaobject>
    </figure>

    <para>The first icon on the bottom panel provides quick access to the
    desktop. If multiple windows are open on your desktop and you would like
    to minimise all of them together, click this icon. Clicking again will
    display your windows in their original state, before you minimised
    them.</para>

    <figure float="0">
      <title>Show the Desktop</title>

      <mediaobject>
        <imageobject>
          <imagedata fileref="images/Lesson03_images_016.png" format="PNG"
                     width="12cm" />
        </imageobject>
      </mediaobject>
    </figure>

    <para>Next to the icon used to minimise the windows is a blank area in
    which the list of open application windows appears, similar to the taskbar
    in Windows. When you open an application, it's listed on this area for
    easy access, as shown in the bottom panel of the following screen:</para>

    <figure float="0">
      <title>Open Applications</title>

      <mediaobject>
        <imageobject>
          <imagedata fileref="images/Lesson03_images_017.png" format="PNG"
                     width="12cm" />
        </imageobject>
      </mediaobject>
    </figure>

    <para>The next icon, workspace, enables you to split the windows that are
    open on your desktop into multiple workspaces. You can then navigate among
    the workspaces by pressing and holding down the CTRL+ALT keys, and then
    pressing either the left or the right arrow key. This reduces the clutter
    on your desktop and eases navigation between windows.</para>

    <para>For example, you might have the Firefox window, an OpenOffice
    application, a search window and a calculator window open on the
    desktop.</para>

    <figure float="0">
      <title>The Workspace Icon</title>

      <mediaobject>
        <imageobject>
          <imagedata fileref="images/Lesson03_images_018.png" format="PNG"
                     width="12cm" />
        </imageobject>
      </mediaobject>
    </figure>

    <para>You can move the Firefox window to a separate workspace by pressing
    and holding down the CTRL+ALT+SHIFT keys and then pressing the left or the
    right arrow key. Two workspaces will be displayed in the bottom-right
    corner of the desktop - one workspace with the Firefox window and the
    original workspace with the other windows.</para>

    <figure float="0">
      <title>Switching Workspaces</title>

      <mediaobject>
        <imageobject>
          <imagedata fileref="images/Lesson03_images_019.png" format="PNG"
                     width="12cm" />
        </imageobject>
      </mediaobject>
    </figure>

    <para>Now, you have two separate workspaces. Notice that the Firefox
    window has shifted to the original workspace. So, depending on the task
    you perform, you can split the windows into different workspaces.</para>

    <figure float="0">
      <title>Splitting Windows into Workspaces</title>

      <mediaobject>
        <imageobject>
          <imagedata fileref="images/Lesson03_images_020.png" format="PNG"
                     width="12cm" />
        </imageobject>
      </mediaobject>
    </figure>

    <para>By default, Ubuntu provides two workspaces. If you want to split the
    windows into more workspaces, you have to add the workspace to the desktop
    by right-clicking the workspace icon and then clicking <emphasis
    role="strong">Preferences</emphasis>. The <emphasis
    role="strong">Workspace Switcher Preferences</emphasis> dialogue box
    appears.</para>

    <figure float="0">
      <title>Creating New Workspaces</title>

      <mediaobject>
        <imageobject>
          <imagedata fileref="images/Lesson03_images_021.png" format="PNG"
                     width="6cm" />
        </imageobject>
      </mediaobject>
    </figure>

    <para>In the <emphasis role="strong">Workspace Switcher
    Preferences</emphasis> dialogue box, type or select the number of
    workspaces from the <emphasis role="strong">Number of
    workspaces</emphasis> list and click <emphasis
    role="strong">Close</emphasis>.</para>

    <figure float="0">
      <title>Workspace Switcher Preferences</title>

      <mediaobject>
        <imageobject>
          <imagedata fileref="images/Lesson03_images_022.png" format="PNG"
                     width="6cm" />
        </imageobject>
      </mediaobject>
    </figure>

    <para>The specified number of workspaces will be displayed in the
    bottom-right corner of the desktop.</para>

    <para>The last icon in the bottom panel is the <emphasis
    role="strong">Waste basket</emphasis>. It contains the files you deleted
    from your computer. Right-click the icon and click <emphasis
    role="strong">Open</emphasis> to open the <emphasis
    role="strong">Trash</emphasis> window.</para>

    <figure float="0">
      <title>The Waste Basket Icon and Menu</title>

      <mediaobject>
        <imageobject>
          <imagedata fileref="images/Lesson03_images_023.png" format="PNG"
                     width="4cm" />
        </imageobject>
      </mediaobject>
    </figure>

    <para>You can delete an item permanently from the computer by pressing the
    DELETE key.</para>

    <note>
      <title>Note:</title>

      <para>Alternatively, you can right-click the item and click <emphasis
      role="strong">Delete from Trash</emphasis> to permanently delete it from
      the computer.</para>
    </note>

    <para>If you want to restore the deleted item to the desktop, drag that
    item to the desktop from the <emphasis role="strong">Trash</emphasis>
    window.</para>

    <figure float="0">
      <title>Deleting Items from Trash</title>

      <mediaobject>
        <imageobject>
          <imagedata fileref="images/Lesson03_images_024.png" format="PNG"
                     width="12cm" />
        </imageobject>
      </mediaobject>
    </figure>
  </sect1>

  <sect1>
    <title>Changing the Default Language</title>

    <para>Ubuntu supports more than 100 languages. You can set the default
    language of your computer either during the installation of Ubuntu or at a
    later stage.</para>

    <para>To change the default language during the installation, select the
    required language when prompted.</para>

    <procedure>
      <title>To change the default language at a later stage:</title>

      <step performance="required">
        <para>On the <emphasis role="strong">System</emphasis> menu, point to
        <emphasis role="strong">Administration</emphasis> and click <emphasis
        role="strong">Language Support</emphasis>. The system prompts you to
        install language support if updates are available for your selected
        language.</para>

        <figure float="0">
          <title>Configuring Language Support</title>

          <mediaobject>
            <imageobject>
              <imagedata fileref="images/Lesson03_images_025.png" format="PNG"
                         width="10cm" />
            </imageobject>
          </mediaobject>
        </figure>
      </step>

      <step performance="required">
        <para>Click <emphasis role="strong">Install</emphasis> to continue. On
        completing the updates, the <emphasis role="strong">Language
        Support</emphasis> dialogue box opens.</para>

        <figure float="0">
          <title>Installing Language Support Updates</title>

          <mediaobject>
            <imageobject>
              <imagedata fileref="images/Lesson03_images_026.png" format="PNG"
                         width="10cm" />
            </imageobject>
          </mediaobject>
        </figure>
      </step>

      <step performance="required">
        <para>In the <emphasis role="strong">Language Support</emphasis>
        dialogue box, from the <emphasis role="strong">Supported
        Languages</emphasis> section, select the check box for the language
        you want to use for support functions in Ubuntu.</para>

        <figure float="0">
          <title>Installing Default Language Support</title>

          <mediaobject>
            <imageobject>
              <imagedata fileref="images/Lesson03_images_027.png" format="PNG"
                         width="12cm" />
            </imageobject>
          </mediaobject>
        </figure>
      </step>

      <step performance="required">
        <para>Click <emphasis role="strong">Apply</emphasis> and then click
        <emphasis role="strong">OK</emphasis>. Ubuntu downloads and installs
        the necessary packages on your computer. The language you selected
        will now appear in the <emphasis role="strong">Default
        Language</emphasis> box.</para>
      </step>

      <step performance="required">
        <para>Select the language that you want set as default, and click
        <emphasis role="strong">OK</emphasis>.</para>
      </step>

      <step performance="required">
        <para>For the changes to take effect, log off and then log on
        again.</para>
      </step>
    </procedure>

    <note>
      <title>Nice to Know:</title>

      <para>You can change the language as many times as you would like and
      this can depend on your location. For example, changing the language to
      Russian may be a nice touch when presenting in Russia during a business
      trip.</para>
    </note>
  </sect1>

  <sect1>
    <title>Creating a User Account and Fast User Switching</title>

    <note userlevel="instructor">
      <title>Instructor Notes:</title>

      <para>Advise students that to understand the concept of fast user
      switching, they need to have more than one user account on their
      computer. Walk the students through creating a new user on their
      computer, and then move on to the concept of fast user switching.</para>
    </note>

    <para>You may have multiple users who want to access your system. In this
    case, there is a risk of data being manipulated or corrupted by other
    users. To prevent this from happening, you can create user accounts for
    each individual who wants to use your computer, giving each user an
    individual account with personalised user settings. For example, it is
    useful to give children their own accounts on the computer to prevent then
    from changing your settings or accessing unsuitable files and
    applications..</para>

    <procedure>
      <title>To create a new user account on Ubuntu:</title>

      <step performance="required">
        <para>On the <emphasis role="strong">System</emphasis> menu, point to
        <emphasis role="strong">Administration</emphasis> and click <emphasis
        role="strong">Users and Groups</emphasis>. The <emphasis
        role="strong">User settings</emphasis> dialogue box appears.</para>

        <figure float="0">
          <title>Adding/Removing Users</title>

          <mediaobject>
            <imageobject>
              <imagedata fileref="images/Lesson03_images_028.png" format="PNG"
                         width="11cm" />
            </imageobject>
          </mediaobject>
        </figure>
      </step>

      <step performance="required">
        <para>In the <emphasis role="strong">User settings</emphasis> dialogue
        box, click <emphasis role="strong">Add User</emphasis> to add a new
        user account on your computer. The <emphasis role="strong">New user
        account</emphasis> dialogue box opens.</para>

        <figure float="0">
          <title>Adding a User</title>

          <mediaobject>
            <imageobject>
              <imagedata fileref="images/Lesson03_images_029.png" format="PNG"
                         width="10cm" />
            </imageobject>
          </mediaobject>
        </figure>
      </step>

      <step performance="required">
        <para>Specify the user accounts' basic settings, contact information
        and password information in the <emphasis role="strong">New user
        account</emphasis> dialogue box.</para>

        <substeps performance="required">
          <step performance="required">
            <para>Type the name with which you want to log on to your computer
            in the <emphasis role="strong">Username</emphasis> box.</para>
          </step>

          <step performance="required">
            <para>Type your full name in the <emphasis role="strong">Real
            name</emphasis> box.</para>
          </step>

          <step performance="required">
            <para>Select your user type from the <emphasis
            role="strong">Profile</emphasis> box.</para>
          </step>

          <step performance="required">
            <para>Type your office location in the <emphasis
            role="strong">Office location</emphasis> box.</para>
          </step>

          <step performance="required">
            <para>Type your work phone number in the <emphasis
            role="strong">Work phone</emphasis> box.</para>
          </step>

          <step performance="required">
            <para>Type your home phone number in the <emphasis
            role="strong">Home phone</emphasis> box.</para>
          </step>

          <step performance="required">
            <para>Type the password for your user account in the <emphasis
            role="strong">User password</emphasis> box.</para>
          </step>
        </substeps>

        <note>
          <title>Note:</title>

          <para>This information is for record keeping only, and other users
          cannot view it.</para>
        </note>

        <para>Click <emphasis role="strong">Close</emphasis> to save the
        settings.</para>

        <figure float="0">
          <title>Configuring New User Account</title>

          <mediaobject>
            <imageobject>
              <imagedata fileref="images/Lesson03_images_030.png" format="PNG"
                         width="10cm" />
            </imageobject>
          </mediaobject>
        </figure>
      </step>

      <step performance="required">
        <para>A new user account will be displayed in the User settings
        dialogue box. This dialogue box displays the new user's full name and
        login name. It also tells you the location of the new user account
        created.</para>

        <figure float="0">
          <title>The New User Account</title>

          <mediaobject>
            <imageobject>
              <imagedata fileref="images/Lesson03_images_031.png" format="PNG"
                         width="12cm" />
            </imageobject>
          </mediaobject>
        </figure>
      </step>
    </procedure>

    <para>Now, if you click the fast user switch icon, there will be two users
    displayed and the current user logged on to the computer will be
    marked.</para>

    <figure float="0">
      <title>Switching Users</title>

      <mediaobject>
        <imageobject>
          <imagedata fileref="images/Lesson03_images_032.png" format="PNG"
                     width="12cm" />
        </imageobject>
      </mediaobject>
    </figure>

    <para>This feature prevents you from logging off and logging on all the
    time to switch users. It allows multiple users to switch quickly while
    staying logged on. By simply clicking the fast user switching icon, a list
    of the user names appears. Select the user name and you will be directed
    to the logon screen. Type the user name and password, and you will be on a
    desktop of the new user. When you switch to another user, the previous
    user screen is locked by default, so the other person cannot make any
    profile changes.</para>
  </sect1>

  <sect1>
    <title>Adding/Removing Applications</title>

    <note userlevel="instructor">
      <title>Instructor Notes:</title>

      <para>Advise students that you will cover this topic in detail while
      teaching the <emphasis role="strong">Customising Ubuntu and
      Applications</emphasis> lesson of this course. This topic is just an
      introduction.</para>

      <para>Tell the students that you will cover this topic in detail while
      teaching the <emphasis role="strong">Customising the Desktop and
      Application</emphasis> lesson of this course. This topic is just an
      introduction.</para>
    </note>

    <itemizedlist>
      <title>Use the Add/Remove applications when you need to:</title>

      <listitem>
        <para>Use software not provided as a default application on
        Ubuntu.</para>
      </listitem>

      <listitem>
        <para>Try an alternative application to the one already
        installed</para>
      </listitem>
    </itemizedlist>

    <para>Ubuntu contains pre-loaded software that you can easily install on
    your computer when required. You can install this software by using the
    Add/Remove application or the Synaptic Package Manager utility of Ubuntu.
    To access the Add/Remove application, on the <emphasis
    role="strong">Applications</emphasis> menu, click <emphasis
    role="strong">Add/Remove</emphasis>.</para>

    <figure float="0">
      <title>Launching Add/Remove Applications</title>

      <mediaobject>
        <imageobject>
          <imagedata fileref="images/Lesson03_images_033.png" format="PNG"
                     width="12cm" />
        </imageobject>
      </mediaobject>
    </figure>

    <para>To access Synaptic Package Manager, on the <emphasis
    role="strong">System</emphasis> menu, point to <emphasis
    role="strong">Administration</emphasis> and click <emphasis
    role="strong">Synaptic Package Manager</emphasis>.</para>

    <figure float="0">
      <title>Launching Synaptic Package Manager</title>

      <mediaobject>
        <imageobject>
          <imagedata fileref="images/Lesson03_images_034.png" format="PNG"
                     width="12cm" />
        </imageobject>
      </mediaobject>
    </figure>

    <para>Synaptic offers an advanced way of installing packages. If you do
    not find a software programme in the Add/Remove tool, you can search for
    it in Synaptic. It searches all software in the available repositories on
    Ubuntu.</para>
  </sect1>

  <sect1>
    <title>Desktop Effects - Compiz Fusion</title>

    <note userlevel="instructor">
      <title>Instructor Notes:</title>

      <para>Advise students that to view desktop effects, computers must have
      a 3D-enabled graphic card.</para>
    </note>

    <para>Compiz Fusion is a 3D window manager that makes use of 3D
    accelerated graphics cards found today on many desktops and laptops. It
    provides a number of visual effects that makes the Linux desktop more
    powerful and intuitive, as well as easier and more fun to use. For
    example, you can place workspaces on a cube, which enables you to move
    from one workspace to another easily.</para>

    <para>Compiz Fusion is enabled by default on Ubuntu 8.04 LTS with appropriate
    graphics cards. It enables the 3D desktop visual effects that improve the
    usability and visual appeal of the system. You really have to see and play
    with this application to appreciate the benefits.</para>

    <procedure>
      <title>To view the visual effects on Ubuntu:</title>

      <step performance="required">
        <para>On the <emphasis role="strong">System</emphasis> menu, point to
        <emphasis role="strong">Preferences</emphasis> and click <emphasis
        role="strong">Appearance</emphasis>. The <emphasis
        role="strong">Appearance Preferences</emphasis> dialogue box
        appears.</para>

        <figure float="0">
          <title>Opening the Appearance Preferences Dialogue Box</title>

          <mediaobject>
            <imageobject>
              <imagedata fileref="images/Lesson03_images_035.png" format="PNG"
                         width="12cm" />
            </imageobject>
          </mediaobject>
        </figure>
      </step>

      <step performance="required">
        <para>In the <emphasis role="strong">Appearance Preferences</emphasis>
        dialogue box, there are three pre-configured levels of special effects
        settings: No effects, Normal effects and Extra effects. You can select
        any one of them:</para>

        <figure float="0">
          <title>Configuring Visual Effects</title>

          <mediaobject>
            <imageobject>
              <imagedata fileref="images/Lesson03_images_036.png" format="PNG"
                         width="8cm" />
            </imageobject>
          </mediaobject>
        </figure>
      </step>
    </procedure>

    <para>If you want a simple desktop without any special effects, select
    <emphasis role="strong">None</emphasis>. If you want a desktop with a
    balance of attractiveness and average performance, select <emphasis
    role="strong">Normal</emphasis>. If you want various desktop effects, such
    as wobbly windows, desktop cube and many more, select <emphasis
    role="strong">Extra</emphasis>. For example, while you are waiting for an
    update to complete or an e-mail client to import e-mail messages, you can
    turn on the Wobbly effect. The windows will start dancing and displaying
    the 3D effects. Play with it a little, it's fun!</para>
  </sect1>

  <sect1>
    <title>Lesson Summary</title>

    <para>In this lesson, you learned that: </para>
    <itemizedlist>
        <listitem>
          <para>Ubuntu utilises the GNOME desktop by default</para>
        </listitem>

        <listitem>
          <para>You can set the default language of your computer either
          during the installation of Ubuntu or at a later stage</para>
        </listitem>

        <listitem>
          <para>Fast user switching enables you to share your computer with
          other users without sharing your files</para>
        </listitem>

        <listitem>
          <para>You can install software by using the Add/Remove application
          or the Synaptic Package Manager utility of Ubuntu</para>
        </listitem>

        <listitem>
          <para>Compiz Fusion is enabled by default on Ubuntu 8.04 LTS and
          provides fun, 3D desktop visual effects</para>
        </listitem>

      </itemizedlist>
  </sect1>

  <sect1 role="questions">
    <title>Review Exercise</title>

    <qandaset>
      <qandaentry>
        <question>
          <para>At the top and bottom of the desktop, you have two bars,
          called _________________.</para>
        </question>

        <answer>
          <para>At the top and bottom of the desktop, you have two bars,
          called panels.</para>
        </answer>
      </qandaentry>

      <qandaentry>
        <question>
          <para>Which are the three shortcut icons already present on the top
          panel?</para>
        </question>

        <answer>
          <para>Mozilla Firefox, Evolution e-mail client and Ubuntu
          help.</para>
        </answer>
      </qandaentry>

      <qandaentry>
        <question>
          <para>What is fast user switching?</para>
        </question>

        <answer>
          <para>Fast user switching is a feature that avoids you having to log
          off and log on all the time to switch users. It enables multiple
          users to switch quickly while staying</para>
        </answer>
      </qandaentry>

    </qandaset>
  </sect1>

  <sect1>
    <title>Lab Exercise</title>

    <formalpara>
      <title>Exercise:</title>

      <para>You have bank-related information on your computer and want to
      block others' access to it. Your friend wants to use your computer for
      some time. To handle this situation, create a new user account for your
      friend and use the fast user switch feature.</para>
    </formalpara>

    <orderedlist continuation="restarts" inheritnum="ignore"
                 numeration="arabic">
      <listitem>
        <para>On the <emphasis role="strong">System</emphasis> menu, point to
        <emphasis role="strong">Administration</emphasis> and click <emphasis
        role="strong">Users and Groups</emphasis>. The <emphasis
        role="strong">User settings</emphasis> dialogue box opens.</para>
      </listitem>

      <listitem>
        <para>In the <emphasis role="strong">User settings</emphasis> dialogue
        box, click <emphasis role="strong">Add User.</emphasis> The <emphasis
        role="strong">New user account</emphasis> dialogue box appears.</para>
      </listitem>

      <listitem>
        <para>In the dialogue box, specify the following information:</para>

        <procedure>
          <step performance="required">
            <para>Type charles in the <emphasis
            role="strong">Username</emphasis> box.</para>
          </step>

          <step performance="required">
            <para>Select Desktop user from the <emphasis
            role="strong">Profile</emphasis> box.</para>

            <substeps performance="required">
              <step performance="required">
                <para>Type charles windsor in the <emphasis role="strong">Real
                name</emphasis> box.</para>
              </step>

              <step performance="required">
                <para>Type England in the <emphasis role="strong">Office
                location</emphasis> box.</para>
              </step>

              <step performance="required">
                <para>Type 111111 in the <emphasis role="strong">Work
                phone</emphasis> box.</para>
              </step>

              <step performance="required">
                <para>Type 99999 in the <emphasis role="strong">Home
                phone</emphasis> box.</para>
              </step>

              <step performance="required">
                <para>Type password@1 in the <emphasis role="strong">User
                password</emphasis> box.</para>
              </step>

              <step performance="required">
                <para>Click <emphasis role="strong">Close</emphasis> to save
                the settings.</para>
              </step>
            </substeps>
          </step>
        </procedure>
      </listitem>

      <listitem>
        <para>Click the fast user switch icon on the top panel. Click charles.
        The logon screen appears.</para>
      </listitem>

      <listitem>
        <para>Type charles in the <emphasis role="strong">Username</emphasis>
        box and password@1 in the <emphasis role="strong">Password</emphasis>
        box.</para>
      </listitem>

      <listitem>
        <para>Your friend can now work on this desktop.</para>
      </listitem>
    </orderedlist>

    <para>Your friend cannot access your user account because the computer
    will ask for your password to log on to the account. So, your personal
    data is safe.</para>
  </sect1>
</chapter>