Virtualization dates back to the introduction of CP/CMS later renamed IBM VM-370. VM-370 provided two key ingredients. Multiprogramming and extended machine with better interface with the hardware[1]. The recent interest in Virtualization came on the back drop of energy conservation and providing services to users. The explosive growth of the needs of internet and data centers has fueled this renewed interest in Virtualization. Virtualization Software Already have experimented with a virtual machine player VMware Player marketed by VMware Inc. Using this we installed FreeBSD, Ubuntu, Gentoo on top of Windows XP. Whats the next step towards Virtualization? Hypervisor? Hypervisors are of two basic types. Type one are those which provide direct interface between the Guest OS and the hardware. While the type two hypervisor has a host OS onto which the virtualization software is installed and then the guest OS is installed. VMware ESX and GSX are examples of type 1 and type 2 hypervis...