A virtual machine is a software-based emulation of a physical computer that runs on a host operating system. It allows users to run multiple operating systems on a single physical machine, enabling them to use different applications and software that may not be compatible with their primary operating system. Virtual machines are commonly used for testing software, running legacy applications, and isolating workloads for security purposes. They provide a flexible and cost-effective solution for running multiple operating systems and applications on a single machine.
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