OpenDOS

OpenDOS is a freeware DOS-like and MS-DOS-compatible operating system. It is not "free software" following the definition by the Free Software Foundation, but it is available for private usage including source code at no cost.It is one name of CP/M-86, which is better known as Digital Research's DR-DOS. Around the time of the development of DR-DOS 6, Digital Research was acquired by Novell, who rebranded the product Novell DOS. The next version was marketed as Novell DOS 7.The DOS product line was then sold off to a separate company, at that time known as Caldera Systems, owned by former Novell CEO Ray Noorda's investment firm The Canopy Group. Caldera renamed Novell DOS to OpenDOS and initiated a program of source code release, to link OpenDOS to Caldera's other OS, OpenLinux, a distribution of the Linux Unix-like OS.
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