by Phil Daley from the June 1983 issue of Micro magazine The operating systems that I have seen available for the Apple use essentially the same read/write routines, but they have been modified or changed. All the disks created by any one system can be read by any other system if you know the procedure. Modifying disks to make them copyprotected (unreadable) is a different technique and a different topic. The Operating Systems covered in this article all use standard DOS 3.
