Virtual machines (VMs) typically refer to separate OS installations on a single computer, with each OS having a share of the computer’s system resources. As an example, a Linux VM may be installed on top of your Windows PC. Several OS installations can coexist on the same physical machine at the same time, so long as the machine has capable enough hardware. This makes VMs a convenient way to extend your desktop and server environments. Other benefits of VMs include easy provisioning and maintainability, and high availability.

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