The concept of CNC: The control system can logically process the program with the control code or other symbolic instructions, decode it through the computer, so that the machine tool executes the specified action, and the blank material is processed into semi-finished parts by cutting tools.

Main structure: CNC system is a dedicated real-time multi-task computer system, in its control software integration of many advanced technology in today's computer software technology, the most prominent is multi-task parallel processing and multiple real-time interrupt.