often made it available to the public without charge. Closedsource means computer programs whose source code is not published except to licensees. It is available
VM (often: VM/CMS) is a family of IBM virtual machine operating systems used on IBM mainframes System/370, System/390, zSeries, System z and compatible
package is called "VirtualBox Oracle VM VirtualBox extension pack". It includes closed-source components, so it is not source-available. The license is called
project owners with an optional feature called DevShare, which places closed-source ad-supported content into the binary installers and gives the project