A simulated environment created by virtualization.
NIST SP 800-125 under Virtual machine (VM)
NIST SP 800-190 under Virtual machine
(NIST SP 800-125)
Software that allows a single host to run one or more guest operating systems.
NIST SP 800-115
A software-defined complete execution stack consisting of virtualized hardware, operating system (guest OS), and applications.
NIST SP 800-125A