There are two different types of Virtualization and both provide different benefits.
PC Virtualization, also known as Desktop or Application Virtualization, is the concept of separating applications and operating systems from physical hardware as a way to increase productivity and optimize resources. In other words, your operating system, applications, and all your data are on a virtual platform, not on your individual computer. You can access this information from any computer, at any location, no matter if it is a desktop, laptop, PC or Mac. You never have to worry about hardware failure wiping out your data. Or not being able to access the information you need because you are not at the office in front of your computer. Software conflicts, storage requirements, and management costs for individual users are eliminated.
Server Virtualization allows for one physical server to house up to 8 virtual servers. Without server virtualization, the capacity of an individual server was limited by conflicting applications. The full capacity of the server could never be utilized – often as little as 5% of the server was utilized – resulting in wasted server space and the need for multiple expensive servers. With server virtualization, each virtual server acts as an individual server, not recognizing that it is one of several. With the use of server virtualization, utilization increases from 60-80%.