We started using virtual machines over 2 years ago and have just finished a project using the technology in a small business, but what is a virtual machine?
Until recently there was strong link between the hardware and the operating system in the world of PCs. In the early days you needed the power of a new computer to run the latest software. This is no longer the case; in fact even the most basic hardware has far more power than that needed to run many business applications, the computer is "idle" (doing nothing) most of the time.
The virtual machine breaks the link between the PC hardware and the operating system, allowing several PCs to run on one computer. One computer can look like and behave like many individual computers. Each individual PC is a "virtual" PC, it looks like a PC to the user but only exists inside the larger host computer as software program.
This has many implications for the future, but for now it means that we can make better and more efficient use of the computing power available. We can continue to use the PC and server platform which has been developed over almost three decades. We will have greater flexibility and be able to deploy new systems more easily with fewer hardware constraints, resulting in greater efficiency and lower costs.
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