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In computing, a virtual machine (VM) is the virtualization/emulation of a computer system. Virtual machines are based on computer architectures and provide functionality of a physical computer. Their implementations may involve specialized hardware, software, or a combination.
Computer operating systems (OSes) provide a set of functions needed and used by most application programs on a computer, and the links needed to control and synchronize computer hardware. On the first computers, with no operating system, every program needed the full hardware specification to run correctly and perform standard tasks, and its own drivers for peripheral devices like printers and punched paper card readers. The growing complexity of hardware and application programs eventually made operating systems a necessity for everyday use.
A computing platform or digital platform is an environment in which a piece of software is executed. It may be the hardware or the operating system (OS), even a web browser and associated application programming interfaces, or other underlying software, as long as the program code is executed with it. Computing platforms have different abstraction levels, including a computer architecture, an OS, or runtime libraries. A computing platform is the stage on which computer programs can run.
A hypervisor is computer software, firmware or hardware that allows partitioning the resources of a CPU among multiple operating systems or independent programs. IBM coined the term hypervisor for the 360/65 and later used it for the DIAG handler of CP-67. The contemporary usage is for virtual machine monitor (VMM) or virtualizer. It 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. Unlike an emulator, the guest executes most instructions on the native hardware. Multiple instances of a variety of operating systems may share the virtualized hardware resources: for example, Linux, Windows, and macOS instances can all run on a single physical x86 machine. This contrasts with operating-system–level virtualization, where all instances must share a single kernel, though the guest operating systems can differ in user space, such as different Linux distributions with the same kernel.
In computing, a benchmark is the act of running a computer program, a set of programs, or other operations, in order to assess the relative performance of an object, normally by running a number of standard tests and trials against it.
IBM Spectrum Protect is a data protection platform that gives enterprises a single point of control and administration for backup and recovery. It is the flagship product in the IBM Spectrum Protect family.
VMware Workstation Player, formerly VMware Player, is a virtualization software package for x64 computers running Microsoft Windows or Linux, supplied free of charge by VMware, Inc., a company which was formerly a division of, and whose majority shareholder remains, Dell EMC. VMware Player can run existing virtual appliances and create its own virtual machines. It uses the same virtualization core as VMware Workstation, a similar program with more features, which is not free of charge. VMware Player is available for personal non-commercial use, or for distribution or other use by written agreement. VMware, Inc. does not formally support Player, but there is an active community website for discussing and resolving issues, as well as a knowledge base.
The following is a timeline of virtualization development. In computing, virtualization is the use of a computer to simulate another computer. Through virtualization, a host simulates a guest by exposing virtual hardware devices, which may be done through software or by allowing access to a physical device connected to the machine.
VMware ESXi 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.
Hardware virtualization is the virtualization of computers as complete hardware platforms, certain logical abstractions of their componentry, or only the functionality required to run various operating systems. Virtualization hides the physical characteristics of a computing platform from the users, presenting instead an abstract computing platform. At its origins, the software that controlled virtualization was called a "control program", but the terms "hypervisor" or "virtual machine monitor" became preferred over time.
Ericom Software, Inc. is a Closter, New Jersey-based company that provides web isolation and remote application access software to businesses.
VMware Infrastructure is a collection of virtualization products from VMware. Virtualization is an abstraction layer that decouples hardware from operating systems. The VMware Infrastructure suite allows enterprises to optimize and manage their IT infrastructure through virtualization as an integrated offering. The core product families are vSphere, vSAN and NSX for on-premises virtualization. VMware Cloud Foundation (VCF) is an infrastructure platform for hybrid cloud management. The VMware Infrastructure suite is designed to span a large range of deployment types to provide maximum flexibility and scalability.
Open Virtualization Format (OVF) is an open standard for packaging and distributing virtual appliances or, more generally, software to be run in virtual machines.
A virtual firewall (VF) is a network firewall service or appliance running entirely within a virtualized environment and which provides the usual packet filtering and monitoring provided via a physical network firewall. The VF can be realized as a traditional software firewall on a guest virtual machine already running, a purpose-built virtual security appliance designed with virtual network security in mind, a virtual switch with additional security capabilities, or a managed kernel process running within the host hypervisor.
Universal Storage Platform (USP) was the brand name for an Hitachi Data Systems line of computer data storage disk arrays circa 2004 to 2010.
Wyse was an independent American manufacturer of cloud computing systems. As of 2012, Wyse is a subsidiary of Dell. Wyse are best remembered for their video terminal line introduced in the 1980s, which competed with the market-leading Digital. They also had a successful line of IBM PC compatible workstations in the mid-to-late 1980s. But starting late in the decade, Wyse were outcompeted by companies such as eventual parent Dell. Current products include thin client hardware and software as well as desktop virtualization solutions. Other products include cloud software-supporting desktop computers, laptops, and mobile devices. Dell Cloud Client Computing is partnered with IT vendors such as Citrix, IBM, Microsoft, and VMware.
VM-aware storage (VAS) is computer data storage designed specifically for managing storage for virtual machines (VMs) within a data center. The goal is to provide storage that is simpler to use with functionality better suited for VMs compared with general-purpose storage. VM-aware storage allows storage to be managed as an integrated part of managing VMs rather than as logical unit numbers (LUNs) or volumes that are separately configured and managed.
Software-defined storage (SDS) is a marketing term for computer data storage software for policy-based provisioning and management of data storage independent of the underlying hardware. Software-defined storage typically includes a form of storage virtualization to separate the storage hardware from the software that manages it. The software enabling a software-defined storage environment may also provide policy management for features such as data deduplication, replication, thin provisioning, snapshots and backup.
In computing, a system virtual machine is a virtual machine that provides a complete system platform and supports the execution of a complete operating system (OS). These usually emulate an existing architecture, and are built with the purpose of either providing a platform to run programs where the real hardware is not available for use, or of having multiple instances of virtual machines leading to more efficient use of computing resources, both in terms of energy consumption and cost effectiveness, or both. A VM was originally defined by Popek and Goldberg as "an efficient, isolated duplicate of a real machine".
Veeam Backup & Replication is a proprietary backup app developed by Veeam for virtual environments built on VMware vSphere, Nutanix AHV, and Microsoft Hyper-V hypervisors. The software provides backup, restore and replication functionality for virtual machines, physical servers and workstations as well as cloud-based workload.
References
- 1 2 "VMmark: A Scalable Benchmark for Virtualized Systems" (PDF). VMware, Inc. 2006-09-25. pp. 6–7. Retrieved 2007-10-16.
- ↑ "VMmark System Requirements - Software Licensing Considerations". VMware, Inc. Retrieved 2007-10-16.
- ↑ "VMmark Reported Results". VMware, Inc. Retrieved 2014-06-11.
- ↑ "VMmark Results". VMware, Inc. Retrieved 2008-05-06.