Linux Distributions
These distributions contain everything that is required to run a mature Unix system on your PC. Including compilers/utilities/Latex/X11/etc from the GNU project of the Free Software Foundation. Although all distributions are freely available from the Internet, the size alone of the various distributions suggests a CD-ROM to start your system. They come with various extra's as compared to the bare-bones downloads.
Various distributions of the Linux system are available:
All distributions adhere to the Linux file and directory structure standard.