Introduction

                                          What is Ubuntu ?

Ubuntu is a operating system  which is bassed on  Debian GNU/Linux distribution  & Distributed open source free .

There are many Ubuntu variants (or derivatives) based on the official Ubuntu editions. These Ubuntu variants install a set of packages that differ from the official Ubuntu distributions.

The variants recognized by Canonical as contributing significantly towards the Ubuntu project are the following

• Edubuntu, a GNOME-based subproject and add-on for Ubuntu, designed for school environments and home users.
• Kubuntu, a desktop distribution using the KDE Plasma Workspaces desktop environment rather than GNOME.
• Lubuntu, a lightweight distribution using the LXDE desktop environment.
• Mythbuntu, designed for creating a home theater PC with MythTV and uses the Xfce desktop environment.
• Ubuntu Studio, a distribution made for professional video and audio editing, comes with higher-end free editing software and is a DVD .iso image unlike the Live CD the other Ubuntu distributions use.
• Ubuntu TV, designed for TVs.
• Xubuntu, a distribution based on the Xfce desktop environment instead of GNOME, designed to run more efficiently on low-specification computers.