host operating system
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host operating system


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DEFINITION - A host operating system (OS) is the original OS installed on a computer. Other operating sytems are sometimes installed on a computer, in addition to the host OS, as guest operating systems. For the purposes of disk partitioning, a guest OS must be the same as the host OS. In virtualization, however, a guest OS can be a different from the host.

LAST UPDATED: 28 Nov 2007

Read more about host operating system:
- SearchVMware.com offers a series for Windows with much more information: How VMware works.
- IT Knowledge Exchange offers expert answers about virtualization and an almost endless number of other topics.
- Wikipedia has an entry about disk partitioning.


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