• storage virtualization: the amalgamation of multiple network storage devices into what appears to be a single storage unit.
• server virtualization: the partitioning a physical server into smaller virtual servers.
• operating system-level virtualization: a type of server virtualization technology which works at the operating system (kernel) layer.
• network virtualization: using network resources through a logical segmentation of a single physical network.
• application virtualization

See also virtual.
Contrast with physical.
Compare virtualization with emulation.

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