Enhancing Security and Flexibility with Virtual Machines in Operating Systems

Virtual machines are software-based emulated computers that run on a physical machine. They allow users to run multiple operating systems on a single physical server or computer. This enables users to run different applications and software on each virtual machine without interfering with each other. Virtual machines are commonly used for testing new software, running legacy applications, and isolating applications for security purposes. They are also popular in cloud computing environments for running multiple virtual servers on a single physical server.