Virtual Machines: Run different kinds of Operating Systems

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Hi to everyone! Well, have you ever tried using Virtual Machines? If you don't know what they are, here is it. In a nutshell, a Virtual Machine is like an imaginary machine running in your local machine. It enables you to run different Operating Systems in your computer as guest Operating systems. I've tried two Virtual Machines. They are VirtualBox and QEmu. Since I like getting to know new things, I tried this stuff and was able to run different kinds of Linux Distributions, old Windows Versions and the like. Why use a Virtual Machine? 1) Isn't it cool to run multiple operating systems in one computer? and each operating system are isolated from one another, so you don't need to worry that it might not be compatible with something else. 2) You can back up an operating system, move it, or even copy it somewhere just like an ordinary file. 3) If you got a powerful machine with you, you can use it more efficiently by using VM's because you can use the full capacity of your machine. 4) Each operating systems can run differently. This is one of the reasons we have these "Shared Hosting". It's like one server that can host numerous websites. It's done by using these virtual machines. Run different operating systems that can handle those sites. But of course, there's always the bad side of it. It is more concerned about your hardware. You might experience Hardware Failure especially if you didn't configure it properly. Especially if you're not running a more powerful machine. Sometimes, your host machine's performance also suffers, like the RAM, your guest operating systems also takes up some memory. It's kind of called like base memory when you try one. So, I hope I have shared some information on you guys! Have a nice day to all!