If you’ve used MS-DOS before then you’ll be right at home right away—if you haven’t, you’ll need to brush up on the commands (we’ve already mentioned a couple of them).

Running Your DOS Program Execute the Program: At the "C:" DOS prompt, type the name of your DOS software EXE file and press Enter. Your DOS software will load within the vDos window, ready for use.

DOS was simple and easy to use with a text-only interface and keyboard-based app control, and it was based on an earlier OS called CP/M created by Digital Research in 1974.