KNOPPIX is a bootable Live system on DVD, consisting of a representative collection of GNU/Linux software, automatic hardware detection, and support for many graphics cards, sound cards, SCSI and USB devices and other peripherals. KNOPPIX can be used as a productive Linux system for the desktop, educational DVD, rescue system, or adapted and used as a platform for commercial software product demos. It is not necessary to install anything on a hard disk. Due to on-the-fly decompression, this DVD has 11 GB of executable software installed on it.
A variety of software packages from the Debian software repositories is installed:
Knoppix 8.1 Release Notes
Knoppix supports 32-bit and 64-bit PCs. During bootup it will detect your CPU and automatically load the correct version.