Ubuntu is the best-known free distribution (distro) of Linux (Ubuntu Manual Team, 2013). One of the main ideas behind most Linux distributions is that the community is able to improve the operating system (OS), regardless of whether that person is a user or a developer. Both users and developers can submit bug reports to help the community collaborate with each other and improve the operating system. Any person with the necessary skills and tools can also develop for the operating system and submit a pull request, a process that allows developers to contribute their code to the operating system. Many Linux distributions, including Ubuntu, have package managers that allow users to easily customize their computer and its software to suit their specific needs. Installation and first-time configuration Installing Ubuntu requires installation media. It can be in the form of CD, ISO disk image or flash drive. Ubuntu Manual Team (2013, p. 9) provides the link to find online downloads for various installers; the website for these downloads is http://www.ubuntu.com/download. This guide will use Ubuntu 12.04 on a 64-bit processor, but can be followed on a computer with a different processor as long as Ubuntu is supported on that machine. The process may be similar for different versions of Ubuntu, but compatibility cannot be guaranteed. Once you have obtained and prepared the appropriate installation media, boot the machine using the installation media, which launches the installer. At this point the computer will display the installer's “Welcome” screen (Burton & Pendleton, 2013). Starting the installation On the “Welcome” screen there is a list of languages ​​in the left column. Choose the appropriate language. In the main view there are two options: ... in the center of the sheet ... just as simple, by left clicking on the icon and selecting "Unpin from Launcher". You can also rearrange the order of icons in the Launcher by clicking and holding an icon until it moves to the right of the Launcher. The icon can then be moved up and down in the Launcher until it is in the desired position (Burton & Pendleton, 2013). Another icon in the Launcher is "Workspace Switcher". These separate views can contain different windows and are useful for keeping different information and applications separate from each other (Ubuntu Manual Team, 2013, p. 25). Dash Home The Dash Home is File System In Ubuntu files are accessible through an application called Nautilus which can be opened via the "Home Folder" icon in the launcher (Ubuntu Manual Team, 2013, p. 28). Another way to open the Nautilus application is to click the dash and select the app files