由于计算机规模越来越大,性能越来越好,因而,逻辑结构也越来越复杂。从逻辑设计、组装设计到制造、检查的各个阶段,需要完成极其繁复而大量的工作,这些工作,若由手工去完成,则要花费大量的人力和时间。为消除数字系统设计里重复的手工操作和计算,产生了“计算机设计自动化”或“数字系统计算机辅助设计”这门新兴学科。它所包含的内容主要有系统模拟、逻辑设计自动化、逻辑模拟、划分、布局、布线和自动测试等。 Due to the increasing size and performance of computers, the logical structure is becoming more complicated. From the logic design, assembly design to manufacturing, inspection of all stages, the need to complete extremely complex and a large number of tasks, these tasks, if done by hand, will spend a lot of manpower and time. In order to eliminate repetitive manual operations and calculations in digital system design, emerging disciplines such as “computer design automation” or “digital system computer-aided design” have emerged. It contains the main contents of the system simulation, logic design automation, logic simulation, division, layout, wiring and automatic testing.