A hypervisor or virtual machine monitor (VMM) is computer software, firmware, or hardware, that creates and runs virtual machines. A computer on which a hypervisor runs one or more virtual machines is called a host machine, and each virtual machine is called a guest machine. The hypervisor presents the guest operating systems with a virtual operating platform and manages the execution of the guest operating systems.
Definition of REGRESS. 1. a: an act or the privilege of going or coming back b: reentry 1. 2. : movement backward to a previous and especially worse or more primitive state or condition. 3. : the act of reasoning backward.
wandering from the main path of a journey; [syn: digression, excursion] The Collaborative International Dictionary of English v.0.48: Digression \Di*gression\, n. [L. digressio: cf. F. digression.] 1. The act of digressing or deviating, esp. from the main subject of a discourse; hence, a part of a discourse deviating from its main design or subject. [1913 Webster] The digressions I can not excuse otherwise, than by the confidence that no man will read them.