Application virtualization means running an application on a machine, which does not actually have the application, installed. Microsoft Softgrid is an example of Application virtualization. A virtualization architecture is a conceptual model specifying the arrangement and interrelationships of the particular components involved in delivering a virtual-- rather than physical -- version of something, such as an operating system (), a server, a storage device or network resources.. False Hot cloning performs the clone operation while the source server is booted and the application is running. Access to the application by the end user is over a LAN or WAN. This topic discusses some of the key similarities and differences between containers and virtual machines, and when you might want to use each. Virtualization is the creation of a virtual -- rather than actual -- version of something, such as an operating system (OS), a server, a storage device or network resources.. Virtualization uses software that simulates hardware functionality in order to create a virtual system. This virtualization layer is called a VM monitor, as shown in the following figure. Earth itself is made up of layers. Virtualization is the process of running a virtual instance of a computer system in a layer abstracted from the actual hardware. A layer of software, called the virtualization layer, exists between a host machine and a VM to simulate virtual hardware. Virtualization doesn’t have to simulate an entire server, as this technology can also virtualize individual application layers or desktops: With application virtualization, users can run applications in an separate form regardless of the operating system in use. The virtualization Layer is an additional abstraction layer between network and storage hardware, computing, and the application running on it. Layers are everywhere. Instead, the application resides on a virtual machine on a server in a different location and using the operating system of that remote server. Suspending an application is mandatory during a Physical-to-Virtual conversion process to ensure all changes are migrated to the newly created virtual machine correctly. In Application virtual, applications are virtualized on the server. A virtual machine manager (VM) which called as hypervisor makes hardware virtualization possible. Containers and virtual machines each have their uses–in fact, many deployments of containers use virtual machines as the host operating system rather than running directly on the hardware, especially when running containers in the cloud. Virtualization is a good way to use and distribute system resources efficiently. It could be done by application streaming, desktop virtualization or VDI, or a VM package (like VMware ACE creates with a player). App virtualization and desktop virtualization. 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