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Computer Security Resource Center

Computer Security Resource Center

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Guest operating system

Definition(s):

  A virtual machine that runs an instance of an OS and its applications.
Source(s):
NIST SP 800-125

  The operating system component of the execution stack of a Virtual Machine (see below), others being Virtual Hardware, Middleware and Applications.
Source(s):
NIST SP 800-125A under Guest Operating System (OS)