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.
1.1 Relating to or marked by psychological regression: a regressive personality. More example sentences. 1  Those writings are largely based upon Freud's assertion that firesetting in youth is a regressive retreat to âprimitive man'sâ desire to gain power and control over nature.ore example sentences. 1  Clearly we are not likely to lower regressive excise taxes on cigarettes, nor are we likely to lower the payroll tax for lower-income workers. 2  Atkinson did admit that indirect taxes are largely regressive, and that eliminating them would increase effective disposable income.