What is Linux?

Linux is an Operating System (OS). An operating system is an environment that lets you interact with your computer, run programs, access files etc. The operating system is installed on your hard disk. New computers almost always comes with a Microsoft Windows OS preinstalled. If you want to run Linux you have three choises: Remove the Microsoft OS and install Linux, repartition your hard drive and run both Windows and Linux from the same hard disk, or buy a second hard disk and install Linux on it. Please be aware that if you repartition you disk you will have to also install Windows again, as all data on the disk is lost. If you choose alternativ 2 or 3 you will choose witch OS to run at boot time. And you should back up your data before repartitioning your disk!!