Essay on Computer virtualization

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I will be describing a Term – Computer Virtualization; exploring what it is and what benefit is reaped in the real world. [1] Computer Virtualization transforms server hardware into software. Using software to transform, or “virtualizes” the hardware resources of a server—including the CPU, RAM, hard disk and network controller—to create fully functional virtual machines that can run their own operating systems(OS) and applications(apps).
Multiple virtual machines share hardware resources without interfering with each other so several operating systems and applications can run at the same time on a single server. This reduces the amount of hardware, power and storage space required to run multiple servers by a substantial percentage,
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As you can see by this picture in figure 1, a Mac user has created a Windows XP Virtual Machine.

The same is true of a Windows XP user. Figure 2. Is a screen shot of a user running Windows XP as their host with a virtualized copy of Vista and legacy Windows 98 running at the same time. This can come in handy for several reasons. Let’s look at a few of these benefits.

The question you are asking now is why would I need to do this? Let us look at some of the benefits and practical uses of Virtualization.
Practical Benefits:
- Application compatibility; you may have a fun game you have been immersed in but it is no longer compatible with the latest Windows 7 OS you just installed. No problem, load up a previous OS in a virtual machine and you are up and playing your legacy game without sacrificing the benefits of Windows 7 features. While running Windows 7, you can run windows XP as a virtual machine dedicated to all your legacy games or other applications that prove to be incompatible your current host computer. If you are a Mac user, perhaps there is an app you need that only runs on Windows or vice versa.
- Virus and Trojan isolation; if your friend or relative just sent you an email attachment or you just downloaded the latest mp3 from a peer-sharing site, would you really want to risk infection from a virus, worm, or Trojan? Try starting up one of your virtual machines

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