BASIC-DOS is still in development. The target release date is August 12, 2021. This is a preview of an unfinished product. Introducing BASIC-DOS for the IBM PC This is a “sneak peek” at BASIC-DOS, the first version of DOS that could have been created for the IBM PC, with the benefit of more time and incredible foresight. The machine shown below is an IBM PC (Model 5150) with two floppy disk drives