Host and Guest Roles

In computing, a "host" is a device, like a computer or server, that runs programs or services, acting as the main system. A "guest" is a virtual machine or software environment that runs within the host, operating as a separate, isolated system. Think of the host as a physical building and the guest as an apartment inside it—allowing multiple virtual environments to coexist on one physical machine. This setup enables efficient resource use, testing, and secure separation of different tasks, all managed on the same physical hardware.