![[Virtual machines]](https://yourselfhood.com/storage/2024/06/1718652427_sewing-machine-1789197_960_720.jpg)
A virtual machine 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 multiple applications on different operating systems without needing separate physical machines for each. Virtual machines are often used for testing software, running legacy applications, and creating isolated environments for security purposes. They are also commonly used in cloud computing environments to provide scalability and flexibility in managing resources.