I dowload this piece of software Knoppix it is a bootable cd with a collection of GNU/Linux software (900 pre-installed)2 gigs worth. It has tons of support for graphics cards, sound cards, scsi and usb. I downloaded from there bittorrent site it took about 1/2 hr to download 699,99 megs. the newest version 3.6 is nice 3.7 will have firewall. everything I understand about this software is that it runs of the disk on-the-fly.
the only negitive thing is of course you cant save your data, say your ip configuration or email. I would think you could get around this by using a iso ripper and input the data and then turn back into a iso.(I read in there forums on how to do that) they have a huge forum base.
this software would be great in a internet caf as its easy to use. and everytime you reboot your os is back to normal to need to reformat, when it becouse corrupt or filled up hard-drive filled with useless info from websites, or viruses, I think you get the hint.
no need for a hard drive. Now i could be wrong but everything is done through ram.
A peice of software on it that is I found usefull was Airsnort. it’s used for finding wireless networks. good for wardriving… check it out