Ubuntu (IPA pronunciation: /u´buntu/) is a widely used Linux distribution predominantly targeted at personal computers. It contains all the applications you need - a web browser, presentation, document and spreadsheet software, instant messaging and much more. Based on Debian GNU/Linux, Ubuntu concentrates on usability, regular releases, ease of installation, and freedom from legal restrictions. Ubuntu is sponsored by Canonical Ltd., a private company founded by South African entrepreneur Mark Shuttleworth.