A "virtual machine" was originally defined by Popek and Goldberg as "an efficient, isolated duplicate of a real computer machine." Current use includes virtual machines that have no direct correspondence to any real hardware. The physical, "real-world" hardware running the VM is generally referred to as the 'host', and the virtual machine emulated on that machine is …

Virtualisation des données. La virtualisation des données est une approche permettant d'unifier les données de plusieurs sources dans une même couche afin que les applications, les outils de génération de rapports et les utilisateurs finaux puissent accéder aux données sans avoir besoin de détails sur la source, l'emplacement et les structures de données d'origine [3].

In computer data storage, drive letter assignment is the process of assigning alphabetical identifiers to volumes.Unlike the concept of UNIX mount points, where volumes are named and located arbitrarily in a single hierarchical namespace, drive letter assignment allows multiple highest-level namespaces.Drive letter assignment is thus a process of using letters to name …

Windows Virtual PC (successor to Microsoft Virtual PC 2007, Microsoft Virtual PC 2004, and Connectix Virtual PC) was a virtualization program for Microsoft Windows.In July 2006, Microsoft released the Windows version free of charge. In August 2006, Microsoft announced the Macintosh version would not be ported to Intel-based Macintosh computers, effectively discontinuing the …

The IBM System/370 (S/370) is a model range of IBM mainframe computers announced on June 30, 1970 as the successors to the System/360 family. The series mostly maintains backward compatibility with the S/360, allowing an easy migration path for customers; this, plus improved performance, were the dominant themes of the product announcement. In September 1990, …

Hypervisor, auch Virtual-Machine-Monitor (aus englisch virtual machine monitor, kurz VMM) genannt, ist die Bezeichnung für eine Klasse von Systemen der praktischen Informatik, die als abstrahierende Schicht zwischen tatsächlich vorhandener Hardware (und ggf. auf dem System bereits installiertem Betriebssystem) und weiteren zu installierenden Betriebssystemen dient.

VMware ESXi (formerly ESX) is an enterprise-class, type-1 hypervisor developed by VMware for deploying and serving virtual computers.As a type-1 hypervisor, ESXi is not a software application that is installed on an operating system (OS); instead, it includes and integrates vital OS components, such as a kernel.. After version 4.1 (released in 2010), VMware renamed ESX to …

The jail mechanism is an implementation of FreeBSD's OS-level virtualisation that allows system administrators to partition a FreeBSD-derived computer system into several independent mini-systems called jails, all sharing the same kernel, with very little overhead.It is implemented through a system call, jail(2), as well as a userland utility, jail(8), plus, depending on the …

VM (often: VM/CMS) is a family of IBM virtual machine operating systems used on IBM mainframes System/370, System/390, zSeries, System z and compatible systems, including the Hercules emulator for personal computers.. The following versions are known: Virtual Machine Facility/370 VM/370, released in 1972, is a System/370 reimplementation of earlier CP/CMS …

Computing. Call management system; CMS-2 (programming language), used by the United States Navy Code Morphing Software, a technology used by Transmeta; Collection management system for a museum collection; Color management system, a system for computers to control the representation of colors; Concurrent mark sweep collector, a garbage collector in the …