Time-sharing operating systems and virtual memory were the first attempts at virtualization. Then it was the virtual machine for software execution (e.g. Java VM, Microsoft CLR). Then the virtual machine architecture that enabled cloud computing. How far can virtualization as an approach to abstraction go?
Virtualization, in computing, refers to the act of creating a virtual (rather than actual) version of something, including but not limited to a virtual computer hardwareplatform, operating system (OS), storage device, or computer network resources.
Virtualization began in 1960s mainframe computers as a method of logically dividing the system resources provided by mainframes between different applications. Since then, the meaning of the term has broadened.
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