Design of a Display Processing Unit in a Multi-Terminal Environment

摘要

The design of a general purpose graphic interactive modeling and simulation system is now being conducted. The display terminal and a central computer are the basic components of the system. Often systems have displays which are tied directly to central registers of the parent computer. The problem with this scheme is that the processor is tied up in generating displays. The solution presented in the paper is the introduction of an intermediate system that will generate and maintain the display at each terminal. The central processor has to generate the picture information only once and pass it to the intermediate system. The system includes a Display Processing Unit (DPU) and a memory. The DPU interprets the picture information and generates sequences of efficient display commands which are stored in the memory. This information is used to refresh a displayed image.