Mac System Software 1.0 1983-07-05 build

This build was found on a Sony 3.5 inch floppy disk and is dated July 5th 1983. The GUI is called Flounder 4.4. It has a picture of a Twiggy disk instead of a Sony disk for the background. The disk is supposedly called Mac 16D0 by the top of the floppy disk. Do It, runs the program that you selected. Copy, makes a copy of the selected program. Rename, renames the selected program.