Ubuntu is an entirely open source operating system built around the Linux kernel.

At the core of the Ubuntu Philosophy are these core philosophical ideals:

• Every computer user should have the freedom to download, run, copy, distribute, study, share, change and improve their software for any purpose, without paying licensing fees.

• Every computer user should be able to use their software in the language of their choice.

• Every computer user should be given every opportunity to use software, even if they work under a disability.