− | Virtualization is a proven software technology that makes it possible to run multiple operating systems and applications on the same server at the same time. <ref>http://www.vmware.com/virtualization/overview Overview virtualization </ref> | + | Virtualization is a proven software technology that makes it possible to run multiple operating systems and applications on the same server at the same time. <ref> [http://www.vmware.com/virtualization/overview Overview virtualization] </ref> |