Until just a few years back, using virtualization software was almost entirely a corporate-world phenomenon, with almost all the activity being staged under the VMware banner which was, is, and will remain closed-source and commercial.
Open-source software has now leap-frogged ahead of the rest of the pack. VirtualBox, an open-source virtualization product created by Germany’s Innotek GmbH—acquired in 2008 by Sun Microsystems (which in turn was acquired by Oracle a couple of years later), now has the pole position on the virtualization grid. And it has a few other open-source ...