The PowerBook 1400 Floppy Update corrects problems that could occur with DOS/Windows-formatted floppy disks on PowerBook 1400c/133 models running System 7.5.3. You should install the PowerBook 1400 Floppy Update if: 1. you are using a PowerBook 1400c/133 model. 2. you are using System 7.5.3 (System 7.6 or later does not require this update) 3. you use DOS/Windows-formatted floppy disks to exchange data with computers running DOS or Windows.
