This is the Delta-DOS Installer! It originally came on floppy disks, but later, a CD version was released. Emulators have also been created for the setup, and that's what this is. When you put the first floppy disk or CD into your computer and run the setup program, it will begin copying files to your hard disk. After a few hours, the installation will finish! With emulation, however, it takes mere seconds.
