FreeDOS
FreeDOS is an open source MS-DOS compatible operating system project initiated by Jim Hall. FreeDOS was set up to provide an alternative to MS-DOS when Microsoft announced in 1994 that they were going to discontinue the sale and support of MS-DOS, their popular single-tasking 16-bit operating system for IBM PC compatible computers.It is licensed under the GPL.
See also : OpenGEM a GUI for FreeDos 9 and above
