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    Dear DhanushkaI have some problem on above note. As My kndwleoge above two systems that OVM & VMW are use for hardware virtualization.  ]I have  t any experience about the Microsoft ones. Theose softwares use for the virtualized the hardware and get out the maximum capability of the hardware. In other words those software use for the make several virtual systems not for the software virtualization. For the software virtualization, in world use Citrix. It is virtualized most of softwares but not hardware.  In most of Telecommunication organization & airlines use Citrix even Google also.any way its good and fine blog