A virtual machine (VM) is a software-based emulation of a physical computer that runs an operating system and applications. It allows multiple operating systems to run on a single physical machine, enabling users to run different software applications on the same hardware. Virtual machines are commonly used in cloud computing environments, software development, testing, and server consolidation. They provide flexibility, scalability, and resource efficiency by enabling the easy deployment and management of multiple virtual machines on a single physical server.
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