Check the listing for details. GEOS Graphic Environment Operating System (Commodore 64 / 128) Berkley Softworks. Condition: Very Good, Made in United States. Listed at 49.00 USD. GEOS operating system box set of software for the Commodore 64 and 128 vintage computers. As far as I can tell this is complete. One floppy disk, one side contains GEOS, and the other Quantumn Link. All the manuals and other bits are also included. Please refer to the pictures. Beyond that, I cannot really provide much info as I have never messed with GEOS, only stuck to the basic C64 blue screen. I am unable to do a thorough testing with my current Commodore setup, but based on the condition of the disk, box and everything else, I suspect it should be fine. It all seems to have been stored and kept in a clean dry space. Shipping cost reflects the extra materials, care, and insurance used so that it arrives just as you see.