Xen

[Daniel Carrera <dcarrera%gmail.com@localhost>]

Hello,

In an earlier post I asked about why people like NetBSD and one person 
mentioned Xen. Since then I've been browsing the mail archives and I've 
seen Xen come up a few times. I'm going to ask a question that might be 
tremendously stupid, but if I don't ask I'll never learn:

Isn't Xen just a virtual machine like QEMU, VirtualBox, etc? What makes 
Xen special that people here talk about it while they don't talk about 
QEMU and VirtualBox?

Thank you for your help.

Cheers,
Daniel.
--
I'm not overweight, I'm undertall.