virtualization uses software to create an abstraction layer over computer hardware, enabling the division of a single computer’s hardware components—such as processors, memory and storage—into multiple virtual machines (VMs). Each VM runs its own operating system (OS) and behaves like an independent computer, even though it is running on just a portion of the actual underlying computer hardware.
It follows that virtualization enables more efficient use of physical computer hardware and allows a greater return on an organization’s hardware investment.
Today, virtualization is a standard practice in enterprise IT architecture. It is also the technology that drives cloud computing economics. Virtualization enables cloud providers to serve users with their existing physical computer hardware. It enables cloud users to purchase only the computing resources they need when they need it, and to scale those resources cost-effectively as their workloads grow.
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