Essay on Hypervisor 1

2637 Words 11 Pages
Hypervisors 1

Runner Header: Hypervisors

CIS 512
December 16, 2012

Hypervisors 2
In today’s world technology has advance in numerous ways. Technology has given the capabilities to receive, fix, and move objects without being present. This is the concept of virtualization. “Virtualization is the creation of a virtual (rather than actual) version of something, such as an operating system, a server, a storage device or network resources”. The virtualization innovation has assisted companies in a positive way, but also can inflict negative wounds to the organization. Virtualization is a proven software technology that is rapidly transforming the IT landscape and fundamentally changing the way that people compute. The
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Virtualization is technology for supporting execution of computer program code, from applications to entire operating systems, in a software-controlled environment. Such a Virtual Machine (VM) environment abstracts available system resources (memory, storage, CPU core(s), I/O, etc.) and presents them in a regular fashion, such that “guest” software cannot distinguish VM-based execution from running on bare physical hardware (Open Kernel Labs).
Virtualization commonly refers to native virtualization, where the VM platform and the guest software target the same microprocessor instruction set and comparable system architectures. Virtualization can also involve execution of guest software cross-compiled for a different instruction set or CPU architecture; such emulation or simulation environments help developers bring up new processors and cross-debug embedded hardware (Open Kernel Labs).
A virtual machine provides a software environment that allows software to run on bare hardware. This environment is created by a virtual-machine monitor, also known as a hypervisor. A hypervisor, also called virtual machine monitor (VMM), is computer software/hardware platform virtualization software that allows multiple operating systems to run on a host computer

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