PUBLIC MARKS from tadeufilippini with tags support & "ubuntu software"

Components The Ubuntu software repository contains thousands of software packages organised into five 'components', on the basis of the level of support we can offer them, and whether or not they comply with our Free Software Philosophy. The components are called "main", "restricted", "universe", "multiverse" and commercial.

Categories of software in Ubuntu The thousands of software packages available for Ubuntu are organised into three key components: main, restricted and universe. Software is published in one of those components based on whether or not it meets our Free Software Philosophy, and the level of support we can provide for it. You can read about these components in more detail here. This policy only addresses the software that you will find in main and restricted, which contain software that is fully supported by the Ubuntu team and must comply with this policy. In the universe component you will find just about every other piece of software you can imagine, under a huge variety of licenses... really the full software universe. If you install software from universe please ensure you take the time to check the license for yourself. All software in Ubuntu main and restricted must be licensed in a way that is compatible with our license policy. There are many definitions of 'free' and 'free software' so we have included our own set of guidelines.