1973
Il termine era in uso almeno nel 1973, come visto in questo annuncio di IPS Computer Marketing Corp. nella rivista Computerworld ( 30 maggio 1973 - Vol. 7, No. 22):
360/651H or J System available for sale or lease Sept. 1973. Will supply with any number of selector channels. With 7074 Hypervisor.
1970
Appare in questi due Documenti del 1970 , con uno che cita l'altro.
Architettura dei sistemi operativi , H Katzan Jr - Atti del 5-7 maggio, 1970 , conferenza informale congiunta di primavera:
... Hypervisors are particularly useful when it is necessary to run an emulator and an operating system at the same time. Similar to multiprogramming systems, a hypervisor is characterized by: (1) limited access; (2) batch utilization; (3) high throughput performance; (4) priority ...
Analisi dei principali sistemi operativi per computer , CS McIntosh, KP Choate, WC Mittwede - 1970 - Documento DTIC ( PDF ):
As a result, this classification scheme should not be viewed as conflicting with other schemes which attempt to either describe different system environments or that are used for other purposes. For example, Harry Katzan, Jr., in a report presented at the 1970 Spring Joint Computer Conference entitled "Operating Systems Architecture, " describes five operating system types: multiprogramming, hypervisor multiprogramming, time-sharing, virtual systems, and tri-level operating systems. This classification scheme was developed to encompass a number of experimental and research-oriented systems, including some of those cited above. Consequently, the classification structure does not purport to be an
inclusive representation of commercially available software. Nevertheless, since several of these system types are not represented by any commercially available system, this categorization can only be superficially applied to the commercial environment.
1969?
Appare anche in snippet precedenti in Google Libri, ma è necessario prestare attenzione in quanto Google ha spesso metadati non corretti. Tuttavia, questo 1969 la descrizione di IBM 360/60 in Servizi di gestione , (Volumi 6-7, American Institute of Certified Public Accountants) sembra possibile ( verifica data ):
To operate in the multiprograming mode with both control systems simultaneously would require a minimum of 128K bytes of core memory, and thus a 360/40, since maximum core for a 360/30 is 65K bytes of memory. In addition, a hypervisor (a master control system requiring both hardware and software) would be required to partition memory between both control systems.
1966?
Potrebbe anche apparire in un documento di IBM: Un sistema di macchine virtuali per 360/40 (1966) di R Adair, R Bayles, L Comeau, R Creasy, ma Google Libri mostra solo come risultato e nessun testo. Se qualcuno ha accesso a questo documento online, forse può confermarlo.