Virtual Machine

With a virtual machine, a user can run several operating system instances on a single piece of hardware. This is because the software is distinct from the actual host machine, saving time, money and physical space. The ability of VMs to handle legacy apps reduces or eliminates the need for (and expense associated with) upgrading older apps to suit new operating systems.

A virtual machine (VM) offers a separate environment where its own operating system and programmes can run without interference from the host system or from other VMs operating on the same host. A single computer can host numerous virtual machines, each running a different operating system and set of apps, without impacting or interfering with the others. Although the VM is still reliant on the physical resources of the host, these resources are virtualized, shared among the VMs, and can be reallocated as needed. This allows the VM to operate many environments at once and adjust to changing workloads.