Software Architecture for a Driver Information System

This paper describes the software architecture for the Driver Information System available in the 1985 Lincoln Continental Mark VII. This CRT-based system consists of a redefineable touch screen and designated feature keys. An overview is provided describing some of the system features, including a discussion relating to the ergonomic considerations which were given to the product's overall design. Definition of, and interaction between, major components is discussed, including details pertaining to the input conditioning, multiple CPU communication, screen prioritization, and interrupt handling.