its possible to use Nintendo Wii to run DOS
Using DOSbox Wii
First things first: you’re going to need a USB keyboard in order to use DOSbox Wii. That’s because DOSbox Wii, like every version of DOSbox, by default presents you with a DOS prompt:
There’s no way around it: to use DOSbox Wii you’re going to need to learn the basics of the DOS prompt. DOSbox offers a great tutorial on their wiki; read it to get your bearings. It shouldn’t be a problem if you’re a longtime DOS user, however.
Those instructions teach you how to mount a drive. DOSbox Wii automatically mounts the “/DOSbox” folder on your Homebrew drive (the SD card or USB drive you run homebrew from) as “C”. For the sake of simplicity I recommend you put software you want to use there.
When you launch a program, the WiiMote will act as your mouse; you can also use a USB mouse, if you prefer. The Gamecube and classic controller are both supported as well. Check the DOSbox Wii page on WiiBrew.org for more information