Puppy 2.15 (i386)

Puppy is extraordinarily small, yet quite full featured. Puppy boots into a 64MB ramdisk, and that's it, the whole caboodle runs in RAM. Unlike live CD distributions that have to keep pulling stuff off the CD, Puppy in its entirety loads into RAM. This means that all applications start in the blink of an eye and respond to user input instantly. Puppy Linux has the ability to boot off a flash card or any USB memory device, CDROM, Zip disk or LS/120/240 Superdisk, floppy disks, internal hard drive. It can even use a multisession formatted CD-R/DVD-R to save everything back to the CD/DVD with no hard drive required at all.

Puppy Linux 2.15CE:
Puppy Linux 2.15CE (Community Edition) is the result of collaboration between a team of Puppy Linux enthusiasts. It is built upon version 2.14, but includes many enhancements. In particular, the guys have worked on an improved user interface and a nice out-of-the-box first impression. They have also developed some SFS files that add OpenOffice.org, web and graphics applications; SFS files are 'combo packs' of applications that can be installed and uninstalled with a few clicks.