Use of NC system of general-purpose PC,which has advantages of being easy to implement open system and network and perfect in software development environment and therefore becomes new development trend of CNC, is stated.

• 论述了使用通用型个人计算机(PC)的数控系统具有易实现开放化和网络化以及软件开发环境完备等特点,指出它是当今计算机数控发展的新动向;