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82.
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What are restricted and non-free software?
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(no translation yet)
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83.
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Most of the software available for Ubuntu is free, open-source software. This software is free for anyone to install and use, and people can modify the software and redistribute it if they like. Ubuntu is built from this type of software.
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(no translation yet)
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Located in
add-applications/C/add-applications.xml:389(para)
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84.
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<emphasis role="strong">Non-free software</emphasis> is software which is not freely redistributable or modifiable. This makes it difficult for the Ubuntu developers to improve the software and correct problems, so it is normally recommended that you use <ulink url="http://www.ubuntu.com/ubuntu/philosophy"> free software</ulink> instead.
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(no translation yet)
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Located in
add-applications/C/add-applications.xml:395(para)
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85.
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<emphasis role="strong">Restricted software</emphasis> is software which has restrictions on its use, preventing it from being classed as free software. Non-free software is a type of restricted software, where the restrictions are due to the software having a non-free license. Other reasons for software being classed as restricted include legal issues (use of some types of software is illegal in some countries) and patent issues (some software requires a patent license to be used legally).
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(no translation yet)
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Located in
add-applications/C/add-applications.xml:402(para)
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86.
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In some cases, restricted software is the only option. Such cases include software for the playback of certain audio and video formats, some fonts and <ulink type="help" url="ghelp:hardware#restricted-manager">drivers for some graphics cards</ulink>.
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(no translation yet)
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87.
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You should be warned by the package manager when you try to install restricted software. If the restricted software cannot be used legally in your country then there is little you can do; you should not install the software. If the software is restricted simply because it is non-free, you may choose to use it (for example, in the case of graphics card drivers). Be aware that most restricted software is not supported in Ubuntu, and problems with such software often cannot be corrected by Ubuntu developers.
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(no translation yet)
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Located in
add-applications/C/add-applications.xml:417(para)
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88.
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Sometimes it is difficult to determine why a particular software package is restricted. If this is the case, seek advice on the <ulink url="http://ubuntuforums.org/">Ubuntu Forums</ulink>. If you are still unable to determine why a package is restricted, err on the side of caution and do not install it; it may be illegal to use it in your country.
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(no translation yet)
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Located in
add-applications/C/add-applications.xml:428(para)
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89.
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Overview of the default Ubuntu software repositories
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(no translation yet)
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Located in
add-applications/C/add-applications.xml:440(title)
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90.
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When you install software on Ubuntu, the package manager automatically downloads the required software packages from a <emphasis>software repository</emphasis>, a location on the Internet which stores collections of packages ready to be downloaded.
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(no translation yet)
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Located in
add-applications/C/add-applications.xml:441(para)
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91.
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There are thousands of programs available to install on Ubuntu. These programs are stored in software repositories and are made freely available for all Ubuntu users. This makes it very easy to install new programs, and it is also very secure because each program you install is built specially for Ubuntu and checked before it is allowed into the repositories.
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(no translation yet)
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Located in
add-applications/C/add-applications.xml:447(para)
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