Puppy's goals
Easily install to USB, Zip or hard drive media.
Booting from CD (or DVD), the CD drive is then free for other purposes.
Booting from CD (or DVD), save everything back to the CD.
Booting from USB Flash drive, minimise writes to extend the life indefinitely.
Extremely friendly for Linux newbies.
Boot up and run extraordinarily fast.
Have all the applications needed for daily use.
Will just work, no hassles.
Will breathe new life into old PCs
Load and run totally in RAM for diskless thin stations

These are extraordinary goals, yet Puppy achieves them all. The fundamental reason is that Puppy has been built from scratch, file-by-file, and is not based on any other Linux distribution. One of the most amazing features of Puppy is the range of powerful applications yet such tiny size ...and the speed.