In computing, virtualization is a broad term that refers to the abstraction of computer resources:

* Platform virtualization, which separates an operating system from the underlying platform resources
** Full virtualization
** Hardware-assisted virtualization
** Partial virtualization
** Paravirtualization
** Operating system-level virtualization
** Hosted Environment (e.g. User-mode Linux)
* Resource virtualization, the virtualization of specific system resources, such as storage volumes, name spaces, and network resources
** Virtual memory, which allows uniform, contiguous addressing of physically separate and non-contiguous memory and disk areas
** RAID (Redundant array of independent disks) and logical volume management, combine many disks into one large logical disk.
** Storage virtualization, the process of completely abstracting logical storage from physical storage
** Channel bonding, the use multiple links combined to work as though they offered a single, higher-bandwidth link
** Network virtualization, creation of a virtualized network addressing space within or across network subnets
** Computer clusters and grid computing, the combination of multiple discrete computers into larger metacomputers
** Disk partitioning, is the splitting of a single resource (usually large), such as disk space or network bandwidth, into a number of smaller, more easily utilized resources of the same type
** Encapsulation, the hiding of resource complexity by the creation of a simplified interface

* Application virtualization, the hosting of individual applications on alien hardware/software
** Portable application
** Cross-platform virtualization
** Emulation or simulation
** Virtualization Development, further work in this area

* Desktop virtualization, the remote manipulation of a computer desktop

Virtualization can also refer to:

* a fictional use of this term, in Scanners (Code Lyoko)

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