What is Virtual machine
A virtual machine is a virtual system that operates like a computer but independently from hardware. Within a single server, several virtual machines can exist. Virtual machines are characterized by some special properties. Virtual machines within the same server could be completely isolated from one another. It is possible to encapsulate the whole machine within a computer file, making it easy to migrate the machine from one server to another. The different machines are managed by a software called “hypervisor”. Utilizing virtual machines could potentially have many benefits. Mainly it makes the system more agile, scalable, and more secure.