A virtual machine is a software-based emulation of a physical computer. It allows multiple operating systems to run simultaneously on the same physical hardware by creating a virtual environment that emulates the hardware components of a computer, such as the CPU, memory, storage devices, and network interfaces. Each virtual machine acts as an independent computer, with its own operating system and applications, running on a single physical machine. Virtual machines are commonly used for testing software and running multiple operating systems on the same machine, as well as for cloud computing and server consolidation.
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