What Is Server Virtualization and Microsoft Hyper-V?

Server virtualization is the ability for a single system to host
multiple guest operating system sessions, effectively taking
advantage of the processing capabilities of very powerful
servers. Most servers in data centers run under 5% to 10%
processor utilization, meaning that excess capacity on the
servers goes unused. By combining the workloads of multiple
servers onto a single system, an organization can better
utilize the processing power available in its networking
environment.