High-resolution interactive colour display

An investigation is made into the feasibility of an interactive layout system for intergrated-circuit masks in which the mask set is displayed on a computer-driven colour screen with a different colour for each mask of the set. The specially designed hardware, in combination with a PDP $\text{11}\text{45}$ computer, allows the display of complicated images. The system is not only a powerful tool for the integrated-circuit designer, but is also suitable for many other interactive colour graphic applications. The development of special software for making the system operational was not part of the study, and some work remains to be done.