A free operating system, comparable to Windows.
To all of you that think that it's not compatible with anything, use the fucking program called Wine on there, it's a nice Windows emulator.
Collin: "My mac is so slow and annoying, it can't do shit"
Joe: "Get Ubuntu Linux"
Collin: "I'll try it"
1 Week later
Collin: "OMG! This is so much better than Windows or Mac!"