Virtualization

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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)
• Encapsulation, the hiding of resource complexity by the creation of a simplified interface
• Virtual memory, which allows uniform, contiguous addressing of physically separate and non-contiguous memory and disk areas
• Storage virtualization, the process of completely abstracting logical storage from physical storage
• Network virtualization, creation of a virtualised network addressing space within or across network subnets
• Channel bonding, the use multiple links combined to work as though they offered a single, higher-bandwidth link
• Memory virtualization Aggregates RAM resources from networked systems into virtualised memory pool
• Cloud computing, Computer clusters and grid computing, the combination of multiple discrete computers into larger metacomputers

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

• Desktop virtualization, the remote manipulation of a computer desktop

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