A virtual machine is referred as a Virtual Private Server or in short, VPS by the Internet hosting services. The term VDS or Virtual Dedicated Server is also used, though it is not as popular as Virtual Private Server. Though the software is run on the same physical computer and there really are no multiple systems involved, the term is used to indicate that functionally there is more than just one machine and it is equivalent to multiple physical computers. This is very useful as it helps in the reduction of power expenditure and also the hardware costs incurred in setting up of multiple systems.
Virtualization also enables businesses to run their legacy applications on older versions of an operating system on the same server as newer applications. You can get a VPS service from any good UK Web Hosting provider. Following the development of technologies such as microcomputers, this practice has become more rampant though the practice of partitioning one server in such a way that it for all practical purposes has the appearance of multiple servers has been popular for quite some time now especially on mid-range computers such as the IBM AS/400 and main frame computers. Each of these virtual servers which are created can be rebooted independently and hence work as their own full-fledged operating systems.
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