PDP-11 Device Driver Package

This document outlines the standard structure and interface for PDP-11 device drivers intended for use with the Disk Operating System (DOS) or in stand-alone applications. It covers driver design principles, such as position-independence and common interface tables, and details procedures for interrupt servicing, parameter list handling, and error management. Appendices provide technical specifications for DOS drivers and supplemental information on specific drivers for devices like the TC11 DECtape, RF11 Disk, and PC11/PC05 high-speed paper tape reader/punch. The manual is intended for users who need to develop or integrate drivers for configurations outside of standard DOS control.