Definitely, why Virtualization? To begin with, it is a very popular technology now a days. Because it has many advantages over usual physical system. Two most noteworthy advantages are more security and less footprint.
This technology allows segmentation inside a system. As a result, you can run many system in one physical computer simultaneously. In a situation of system crash or virus infection, you can go back to a previous better state using snapshot of your virtual system. This increases security.
At the same time, Virtual system also uses low space and power consumption comparing to real systems.
One practical use of virtual technology you may want to try is installing various operating systems inside your current operating system. To read more about this process read How to install CentOS 7 Linux using virtual technique.
What is Virtualization
Virtualization means using one or more guest operating system inside a host operating system. Further, it allocates system resources for different virtual systems separately. Suppose, you are using a Windows operating system. Now for some reasons you want to use a Linux operating system. In case like this, you can install Linux without using virtual technology. But as a new user of Linux you can use virtualization tools for installing Linux safely, so that it doesn’t crash your entire hard disk.
Virtualization software creates a virtual hard disk, processor, RAM and other necessary hardware correspondingly. After that, your guest operating system will only access those virtually created hardware. So this won’t be able to affect your main operating system.
Popular Tools for Virtual System
There are three main requirements for virtualization.
- Equivalence – Virtual system has to run like a real system.
- Resource control – Host system should have full control.
- Efficiency – Virtual systems have to be able to run any instruction with no or less help of host system.