http://www.ubuntu.com. Ubuntu is a complete desktop operating system, freely available with both community and professional support. The Ubuntu community is built on the ideas enshrined in the Ubuntu Manifesto: that software should be available free of charge, that software tools should be usable by people in their local language and despite any disabilities, and that people should have the freedom to customize and alter their software in whatever way they see fit.
- Ubuntu will always be free of charge, and there is no extra fee for the “enterprise edition”, we make our very best work available to everyone on the same Free terms.
- Ubuntu includes the very best in translations and accessibility infrastructure that the Free Software community has to offer, to make Ubuntu usable by as many people as possible.
- Ubuntu is shipped in stable and regular release cycles; a new release will be shipped every six months. You can use the current stable release or the current development release. A release will be supported for 18 months.
- Ubuntu is entirely committed to the principles of open source software development; we encourage people to use open source software, improve it and pass it on.
Ubuntu does everything you need it to and more. It’ll work with music, videos, photos and files that you use on your current PC. And it works just as well with printers, cameras and all common smartphones.
It’s hard to believe that such a polished, professional and popular product can be free. But Ubuntu is free to anyone who wants to use it. Here’s why.
It’s open source.
Our global community is made up of thousands of people who want to help build the best open-source operating system in the world. They share their time and skills to make sure that Ubuntu keeps getting better and better. From IBM to Google, Firefox to Wikipedia — some of today’s best software is based on an open-source model. Shared efforts. Shared principles. No cost.
It’s managed and funded by Canonical.
Canonical is the number-one Ubuntu services provider. Companies can choose to receive expert training, support or consultancy for a fee that goes towards the continued development of Ubuntu.