PCLinuxOS is an English-only GNU/Linux distribution that runs entirely from a bootable CD without installing anything on your computer. Data on the CD is decompressed on the fly, allowing up to 2GB of programs on one CD, including a complete X server, KDE desktop, OpenOffice.org, Thunderbird, Firefox, P2P file sharing, and much more, all preconfigured and ready to use. In addition to the liveCD mode, you can also install PCLinuxOS to your hard drive using an easy-to-use liveCD installer.