If you need to use virtual machines on Linux, try Virt-Manager. Virt-Manager is more reliable than VirtualBox. Virt-Manager is completely free and open-source. I'm a long-time supporter of VirtualBox.
Andrew Warkentin's Virtual OS Museum packages 600-plus historical operating systems into a downloadable Linux VM, with Full and Lite editions for offline use.
Cloud computing and virtualization software company VMware has announced that its flagship desktop software is now free for personal use. Individual users can now download and use VMWare Fusion Pro ...
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