WinPCNC (Windows Personal Computer Numerical Control) system is one-computer NC, which is built on the mighty platform of the personal computer with both the Windows NT operating system and the real-time extension RTX 4.1 of VentureCom. It refers to the PCNC class (Personal Computer Numerical Control), i.e. to the class of "personal control systems", which is fairly supposed to be the most promising class of new-generation NC systems.