What is desktop virtualization?

The use of software to abstract the operating system, applications and associated data from the user's PC.

Why do IT shops use it?

Virtualization, according to vendors, makes it easier to manage user PCs, provision new desktops, push out patches and enforce security policies. Total cost of ownership can be reduced with desktop virtualization, depending upon the choice of software and hardware, but projects usually require higher upfront costs than a regular PC refresh.

What's in it for users?