is a bootable CD with a 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 Linux demo, educational CD, 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, the CD can have up to 2 GB of executable software installed on it.

From the change log:
"* V3.3-2003-09-22
- added AX25 protocol support on request
- Boot option tohd=hda1 changed to tohd=/dev/hda1 for consistence
- New and improved inofficial installer "knoppix-installer" from Fabian Franz
- Service menu for Samba export
- re-added xchat
- ddcxinfo-knoppix now uses extended monitor modelines from Kano by default
- fixed knoppix-terminalserver (Kernel 2.4.22 module dependencies)"

Quelle
Download English ISO
Download German ISO