Knoppix Linux and Live CD is a Debian based Linux distribution, developed by Klaus Knopper.
Knoppix is primarily designed to be used as a live CD, it can also be installed on a hard disk like other Linux distro.
The new Knoppix 5.1.0 has been released, both CD and DVD versions. Following are new featues:
=> Update to Debian etch/testing as base distribution
=> Linux Kernel 2.6.19(.1) + fuse 2.6.1
=> cloop 2.05 Realtime Decompression with extended block-buffering for reduction of CD/DVD access latency
=> Replacing unionfs by aufs for better stability & performance
=> KDE 3.5.5
=> OpenOffice 2.1
=> ntfs-3g for full transparent NTFS write support
=> ntfsprogs-Update (ntfsresize, ntfsmount, ntfsfix)
=> integration of 3D desktop beryl+emerald as add-on for KDE and much more
=> More information is available here
List of popular application
More than 25009 apps included on DVD:
=> XMMS, with MPEG video, MP3 audio, and Ogg Vorbis audio playback support
=> Internet access software, including the KPPP dialer, ISDN utilities and WLAN
=> The Mozilla Firefox web browser
=> K3b, for CD (and DVD) authoring and backup
=> The GIMP, an image-manipulation program
=> Tools for data rescue and system repair
=> Network analysis and administration tools
=> OpenOffice.org, a comprehensive office suite
=> Many programming and development tools and much more
Download KNOPPIX 5.1.0
As always, KNOPPIX 5.1 can be downloaded from the Knoppix Mirrors or Bittorrent (4GB DVD Size).
Update : Check out Knoppix v5.1.0 LiveCD screenshots.