Pentium 90
 

I am running Linux Mandrake 8.0 on a Pentium 90, with 64 MB of RAM, a 4MB video card and a 1.6GB harddrive. It works great! Thats the cool thing about Linux...you don't have to keep up with all the new hardware to have a successful OS. Windows XP claims that you should have 256MB of RAM minumum, and 512 Recommended!!!