This post shows students and new users steps to install and configure Oracle VirtualBox on Ubuntu Linux. VirtualBox is an open source, cross-platform virtualization software that allows you to run multiple guest machines (virtual machines) simultaneously on a single host computer.
VirtualBox is generally used in test environments. In some development environments, a VirtualBox host is used to run multiple operating systems, and these machines are used to test different test scenarios.
With VirtualBox and similar virtualization software, you can use a single machine as a host computer. Then within the virtualization software, you can create multiple independent guest computers, each running its own operating system.
Applications running one in one OS may not run efficiently on other operating systems, and VirtualBox can be very helpful in this situation to make sure an application is tested to run anywhere on any operating system.
For more about VirtualBox, check its homepage.
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