- First 2 pages have some ink, disks are untested. This listing is for a vintage Blue Chip Personal Computer Systems manual for GW-BASIC Version 3.20. The manual is housed in a 3-ring binder and includes three 5.25" floppy disks. Two disks contain MS-DOS Version 3.2 and GW-BASIC Version 3.2. The third disk is a Blue Chip Computer Diskette Based Diagnostic System Version 1.0. This is a rare piece of computing history, perfect for collectors, enthusiasts, or those restoring vintage Blue Chip or IBM PC compatible systems. The manual shows some signs of age and previous use, including handwritten notes on some pages, consistent with its vintage nature. The disks are untested but appear to be in good physical condition for their age.