FreeDOS is an open source DOS-compatible operating system that you can use to play classic DOS games, run legacy business software, or develop embedded systems. Any program that works on MS-DOS should also run on FreeDOS. But if you[he]#039[/he]ve never used DOS, you might be confused about how to navigate the system. FreeDOS is primarily a command-line interface; there is no default graphical user interface (GUI) in FreeDOS. You need to type every command at the command line.

Source: LXer – How to navigate FreeDOS with CD and DIR