it depends on the model. Actually the PPC based units are very much like PC hardware. same drives, same memory chips, etc, depending on how old it is. I was in the Rochester Minn. plant where we make these units about 4 years ago, and I was amazed at how similar the work station units looked inside to a PC. I am certain that there are linux ports for this processor from suse and Turbolinux. I can see the ISO's on the IBM internal linux FTP server. What do you get for your $15?? any memmory or hard drive?