Run many operating systems on a single computer that can be directly accessed simultaneously (virtualization), became a most efficient way to suppress the use of power, hardware management, and also its maintenance. Now, we will slightly peeling things associated with hardware-assisted virtualization.
Virtualization solution are allowing you to run multiple virtual machines (a separate computer platform), in one physical computer. System virtualization is a technology commonly used to consolidate computer systems, workload, and operating environment by using only one physical system to create many virtual systems. Some market leader in virtualization system today, in between VMware for Windows and Linux, Microsoft Virtual Server, and the open source Xen Hypervisor. Virtualization system itself is a software-based virtualization platform. At the core of a system virtualization is another technology called Virtual Machine Monitor (VMM). VMM is providing overall management process for the computer resource can be accessed by each virtual machine (VM).
In simple, the VMM can be analogous to the code which is directly in the firmware, which is managing multiple operating systems or multiple processes running on the operating system, the same within a single computer system. Its main functions for the management processor, memory, and other resource-allocating resources towards what is needed each operating system. VMM can do this by way of emulation, namely by dividing a physical computer or server, and allows multiple operating systems to operate safely within the same CPU. It will also improve the efficiency of resource usage of CPU, with no resource is wasted.
More simply, in modern virtualization system, a software layer called a virtual machine manager (VMM) or hypervisor runs directly into the processor. VMM will create multiple virtual machines, where in the virtual machine is loaded in a standard operating system without modifications such as Linux, Solaris, or Windows. Each virtual machine thinks that they are running on a physical computer directly, and have access to the computer to be used exclusively for each of the virtual machine.