Virtual PC software

Features and usability of virtual PC software


Initially Virtual PC software was a commercial product sold by Connectix for the Macintosh platform, which enabled the users to run computer applications. Later it was known as Microsoft Virtual PC as it was purchased by Microsoft. Virtual PC uses the existing CD-ROM drives as devices in the virtual machine, so it is easy to install a new operating system on a blank virtual hard drive. Some of the most important features of a virtual PC software is that it is a wonderful application that helps you to install other operating systems on your PC without removing or changing your existing operating system. Before installing Virtual PC, make sure that the users have a legal copy of the operating system that they wish to install.


The following are the various types of virtual PC software:




  • Application virtual PC software

  • System virtual PC software

  • Operating system-level virtualization software



Application virtual PC software



An application virtual PC also called as process virtual PC software, runs as a normal application in an operating system and supports a single process. It is created when the process starts and is terminated when it exits. Its function is to offer a platform-independent programming atmosphere. Virtual PC is implemented using an interpreter and performance is achieved using just- in-time compilation.



System virtual PC software



It allows sharing of underlying physical machine resources between different virtual machines, where each machine runs its own operating system. These are lesser efficient than the real machines. When they indirectly access the hardware, they also provide instruction set architecture (ISA) that is different from real machines. System Virtual PC is easy to maintain and is widely available. When more number of virtual machines are running concurrently on the same physical host, they might have unstable performance.



Operating system-level virtualization software


It is a technology which virtualizes servers in an operating system. It can be considered as partitioning where a single layer is partitioned into multiple parts and each of this partition looks like an actual server from the user’s viewpoint. This level architecture helps the users to increase the use of server resources efficiently having a low overhead, for example: free virtual private servers.




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