Apple IIGS Prodos 16 Reference

This invaluable guide documents the ProDOS 16 operating system and describes the System Loader. The disk contains ProDOS 16, system files, and the Exercise program.

Technical reference for ProDOS 16 (new OS for IIGS, predated the later GS/OS). Detailed programmer's documentation of OS features and system calls. Also includes using QUIT call, writing controlling programs, interrupt handlers, etc.