This paper is about a software system, GRASS-Graphic Software System for 2-D drawing and design-which has been implemented on a PDP- 11 35 system with RSX-11M operating system. It is a low cost interactive graphics system for the design of two dimensional drawings and uses a minimum of hardware. It provides comprehensive facilities for creating, editing, storing and retrieving pictures. It has been implemented in the language Pascal and has the potential to be used as a powerful data-imputting tool for a design-automation system. The important features of the system are its low cost, software character generation and a user-trainable character recognizer, which has been included. © 1982.
Srikant, Y. N., Vidyasagar, D., & Patnaik, L. M. (1982). An interactive graphics system for 2-D drawing and design. Computers and Graphics, 6(1), 23–27. https://doi.org/10.1016/0097-8493(82)90012-7