精选优质文档-倾情为你奉上 Unit 1 计算机技术Introduction前言The central and essential ingredient of GAD/CAMis the digital computer.1Its inherent speed and storage capacity have made it possible to achieve the advances in image processing, real-time process control, and a multitude of other important functions that are simply too complex and time-consuming to perform manually. To understand CAD/CAM it is important to be familiar with the concepts and technology of the digital computerCAD/CAM的重要组成部分是数