MS-DOS 1.25

MS-DOS 1.25 was released August 19812.

1.X was very limited in what it could do. It could start COM, and.EXE applications, and it could also process batch files (.BAT).

1.X worked with 160KB floppy images, but it did support folders, (all had to be within the system)

The only commands you could do in 1.X was:

DIR, TYPE, COPY, ERASE, RENAME, PAUSE, REM,

DOS 1.X did not support pipes, redirection, or device drivers. The API was also very limited as well.