VirtualBox is much easier to use than KVM, especially if all you want to do is run a second operating system on top of Ubuntu. It was created by innotek GmbH, purchased by Sun Microsystems, and is now owned and developed by Oracle after their purchase of Sun. VirtualBox is installed on top of another operating system, so it isn’t ideal for processing intensive activity where every processor cycle counts. However, for testing or for running another operating system because you need specific applications, it is great. VirtualBox runs on top of most UNIX-type operating systems such as Linux, BSD, and Mac OS X (as well as on Windows).

There is a version of VirtualBox in the Ubuntu software repositories, but in general downloading the ...

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