Kubuntu

Kubuntu is a version of the free Linux distribution Ubuntu. It uses the desktop environment KDE instead of GNOME. Most of the software used in Kubuntu, is part of the KDE project, but all other software used in Ubuntu can also be used.

Because the only difference of Kubuntu and Ubuntu is the default software, an Ubuntu system can turn into a Kubuntu system, or a Kubuntu system into an Ubuntu system, only by installing some software.

Some examples of changes in software:
Adept is used instead of Synaptic
Konqueror is used instead of Firefox
Kopete is used instead of Gaim
KTorrent is used instead of Transmission

Related pages
List of Linux distributions

 Other websites 

 Official site

References

Category:Ubuntu (operating system) derivatives
Category:X86-64 Linux distributions