Do you want to play the old DOS games or applications? I do and I believe that there are still lots of ex DOS users want to run their old applications.
It was my first opereting system and I think I used it at about 25 years ago if I’m not mistaken. I like to remember what I did before especially if I have good memories with it. Playing Digger, Test drive or Lemmings, typing with wordstar, database with Dbase III+, spreadsheet with Lotus 123 or Impress and some utility tools like PCTools or Locksmith. Put in the big floppy disc for booting and replaced it with another floppy disc with the program. Hard disc was very rare on that time. But, I tell you, you were very lucky if you have a PC on that time.
Well, that’s all the folk. Now, there is a emulator named DOSbox that can do that. For more details about the DOSbox emulator you can read it in wikipedia.org
The installation is very easy.
Make sure you are connected to the internet.
Open your linux terminal and type: sudo apt-get install dosbox.