What is Ubuntu?
Ubuntu is an free (and open source) operating system built by a worldwide team of expert developers that is perfect for laptops, desktops and servers. It contains all the applications you need: a web browser, office suite, media apps, instant messaging and much more.
The Ubuntu promise
Ubuntu is an open-source alternative to Windows and Office.
* Ubuntu will always be free of charge, along with its regular enterprise releases and security updates
* Ubuntu comes with full commercial support from Canonical and hundreds of companies from across the world
* Ubuntu provides the best translations and accessibility features that the free software community has to offer
* Ubuntu core applications are all free and open source. We want you to use free and open source software, improve it and pass it on.
Screenshots and video of Ubuntu 9.10 (released in 2009):
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Resources: Images from debianadmin.com