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27.
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A software repository is a place from which you can download and install software over the Internet.
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(no translation yet)
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28.
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There are thousands of programs available to install on Ubuntu. These programs are stored in software archives (<emphasis>repositories</emphasis>) and are made freely available for installation over the Internet. This makes it very easy to install new programs in Linux, and it is also very secure, because each program you install is built specially for Ubuntu and checked before it is installed.
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(no translation yet)
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29.
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To organise the software, Ubuntu repositories are categorised into four groups: <emphasis>Main</emphasis>, <emphasis>Restricted</emphasis>, <emphasis>Universe</emphasis>, and <emphasis>Multiverse</emphasis>. The rationale used to determine which software goes into which category is based on the level of support that software development teams provide for a program and the level of compliance the program has to the <ulink url="http://www.ubuntu.com/ubuntu/philosophy">Free Software Philosophy</ulink>.
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(no translation yet)
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Located in
add-applications/C/add-applications.xml:111(para)
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33.
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You can find more information about the Repositories available <ulink url="http://www.ubuntu.com/ubuntu/components">on the website</ulink>.
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(no translation yet)
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Located in
add-applications/C/add-applications.xml:142(para)
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35.
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It is possible to add extra repositories, such as those provided by third parties or those for older version of Ubuntu.
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(no translation yet)
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Located in
add-applications/C/add-applications.xml:149(para)
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36.
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Be careful when installing software from third-party repositories. It may not have been tested with Ubuntu and could cause your system to break.
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(no translation yet)
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Located in
add-applications/C/add-applications.xml:155(para)
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37.
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Open <menuchoice><guimenu>System</guimenu><guimenuitem>Administration</guimenuitem><guimenuitem>Software Sources</guimenuitem></menuchoice> and press <guilabel>Third Party Software</guilabel>.
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(no translation yet)
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Located in
add-applications/C/add-applications.xml:164(para)
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46.
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With the <guimenuitem>Add/Remove</guimenuitem> item in the <guimenu>Applications</guimenu> menu, you can install programs to do new things with Ubuntu. You can also remove programs you do not want. You need administrative access to use <application>Add/Remove Applications</application> (see <ulink type="help" url="ghelp:administrative">Administrative Tasks</ulink> for more details).
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(no translation yet)
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49.
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When you click <guibutton>Apply Changes</guibutton>, any new software will be downloaded from the Internet, and Ubuntu will make any other changes you selected. If you have not activated the online package archive, you may be asked to insert your Ubuntu CD-ROM to install some packages.
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(no translation yet)
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Located in
add-applications/C/add-applications.xml:287(para)
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52.
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Other than using tools that download packages automatically, it is also possible to use a CD to install packages through a package manager while not connected to the Internet. The Ubuntu installation CD can be used for this purpose, and other CDs with different packages are available as well. Additionally, the program <application>APTonCD</application> can automatically backup installed packages on your system, and create CDs with the contents of various repositories on them.
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(no translation yet)
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Located in
add-applications/C/add-applications.xml:303(para)
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