Throughout this course, we have looked a variety of intricacies of the PC and its uses. This week we will look at virtualization. Virtualization is part of enterprise computing and is the abstraction between the various computer sources such as CPU, Memory, Storage and NIC. The basic idea of virtualization is the fact that many different tasks may have to be completed in the same time frame, so the computer works on "virtual" computers to get each task done while relying on only one physical host computer.
So, this may seem confusing to some, but let's break it down a little more. The difference between a physical and virtual machines comes down to the actual parts of a machine. For instance, physical machine parts of a computer are dedicated resources, device drivers specific to hardware, multiple PM or boxes and the fact that one must by operating system licenses to utilize such material. Virtual machines, on the other hand, consist of shared resources, generic device drivers, multiple VMs take up only one box and OS licenses are required. One of the main differences is the fact about device drivers; VM utilize generic device drivers that make migration easy and deployment rapid.
There are obviously incentives for utilizing VM. Some of these benefits include: less money spent on technology support as there are multiple OS on just one physical host, VM portability, security. The biggest part for me is security. The fact that VM are easily restored to previous settings and do not mess up the integrity of the physical host makes it an ideal situation. Even servers that utilize VM have benefits such as utilizing space at a maximum and consolidation of information.
As you can see, there are many reasons why virtualization is an important part of the business world as well as the computer world. It saves time, money and space which are key factors in business!
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