This item has been shown 17 times.
IBM Disk Operating System Version 3.20 With 5.25" Floppy Disk.
Used with signs of wear from age. There are pages in the front of the book that have a bend folded crease in them.
Shipping within the continentalUnited States only
( Please contact us first, if outside of the shipping area )
Overseas shipping may include extra shipping charges