The Apple FDHD Drive is similar to Apple's 800K drives but has the following additional features:
- Formats HD disks and stores up to 1.4 MB of data
- Reads and writes Apple 400K and 800K data disks (backward compatible)
- Reads and writes MS-DOS-formatted, 3.5-inch 720K and 1.4 MB data disks
- Formats 720K and HD disks for use in MS-DOS computers
- Formats 400K and 800K disks for use in 400K and 800K disk drives
Note: You should not use HD disks in 400K or 800K disk drives. The magnetic characteristics of HD disks prevent 400K and 800K drives from reliably reading and writing information on an HD disk and also prevent these drives from properly initializing HD disks for use in an FDHD drive.
- Transfers data between Macintosh and MS-DOS computers
This technical guide by Apple explains the procedures and technical points of the Apple FDHD Drive. Download to view in PDF.
