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Chapter 1: What is Virtualization? > How Virtualization Works - Pg. 3

How virtualization works 3 VIRTUALIZATION DEFINED As with all emerging technologies, there are several definitions or perceptions of what constitutes virtualization. To remove ambiguity, it is important to understand what virtualization means within the context of this book. Let us start with the definition provided by Amit Singh, author of kernelthread.com, in "An Introduction to Virtualization": Virtualization is a framework or methodology of dividing the resources of a computer into multiple execution environments, by applying one or more concepts or technologies such as hardware and software partitioning, time-sharing, partial or complete machine simulation, emulation, quality of service, and many others [1]. This is an accurate definition, but it fails to consider business drivers. It should be more specific about expected outcomes. Integrating outcomes, we arrived at the following: