Ubuntu is a complete Linux-based operating system, freely available with both community and professional support. It is developed by a large community and we invite you to participate too!
Ubuntu is suitable for both desktop and server use. The current Ubuntu release supports PC (Intel x86), 64-bit PC (AMD64), UltraSPARC T1 (Sun Fire T1000 and T2000) and PowerPC (Apple iBook and Powerbook, G4 and G5) architectures.