Isäntäkäyttöjärjestelmän

Isäntäkäyttöjärjestelmä is the Finnish term for a host operating system. In the context of virtualization, the host operating system is the primary operating system installed on the physical computer hardware. This operating system manages the computer's resources, such as the CPU, memory, and storage, and provides an environment for other software to run.

When virtualization software, such as a hypervisor, is installed and run on the host operating system, it allows for the creation and management of virtual machines. Each virtual machine operates as if it were an independent computer with its own operating system, known as a guest operating system. The hypervisor, in conjunction with the host operating system, mediates the access of these guest operating systems to the underlying physical hardware.

The performance and stability of the virtualized environment are significantly influenced by the host operating system. A well-configured and up-to-date host operating system generally leads to a smoother and more efficient virtualization experience. Common examples of host operating systems used in virtualized environments include Windows, Linux, and macOS. The choice of host operating system can sometimes depend on the specific virtualization software being used and the intended workload of the virtual machines.