Comment Re:User Mode Linux? (Score 4, Informative) 260
User Mode Linux is basically a VM. It uses virtual devices for hardware multiplexing. Read the "Alternative technolgoies/Virtual Machines" and "Alternative technologies/Limitations of those technologies" for why this is a different (and better in some instances) solution.
The vunify tool has significance when differentiating between VM's and this.
The vunify tool has significance when differentiating between VM's and this.