Beschreibung
Hypervisors are what make virtual machines possible, and they arent just for servers anymore. You probably use one every day and dont even know it. The term hypervisor was first coined in 1956 by IBM to refer to software programs distributed with IBM RPQ for the IBM 360/65. The hypervisor program installed on the computer allowed the sharing of its memory. A hypervisor is software that exists outside of a guest operating system to intercept the commands sent to the computer hardware. The term hypervisor comes from the different levels of an operating systems kernel; it performs actions with more authority than the supervisor level, hence, hyper-visor. Hypervisors can be divided into two types: Type 1: (native or bare-metal hypervisors) these run directly on the host computers hardware to control the hardware resources and to manage guest operating systems. Examples of Type 1 hypervisors include VMware ESXi, Citrix XenServer and Microsoft Hyper-V hypervisor. Type 2: (hosted hypervisors) these run within a formal operating system environment. In this type, the hypervisor runs as a distinct second layer while the operating system runs as a third layer above the hardware.
Autorenporträt
Ammar Wisam Altaher : Studied Bachelor's Degree in Computer Science at Babylon University /Iraq ,Master's Msc in Information Technology Management at Binary University / Malaysia ,Now PhD Student in the Department of Programming Technologies /Kazan Federal University / Russia . workplace Iraq: Ministry of Higher Education And Scientific Research .
Herstellerkennzeichnung:
OmniScriptum SRL
Str. Armeneasca 28/1, office 1
2012 Chisinau
MD
E-Mail: info@omniscriptum.com
