How to navigate FreeDOS with CD and DIR: 
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’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.
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