The application program for t he new digital system is based on windows nt workstation 4 . 0 operating system and it was developed under visual c + + 5 . 0 applying ooa and ood 为适应测控软件的实时性和可靠性要求，我们运用microsoft公司的ddk设备驱动程序开发包研制了pcl - 731并口板与ad / da转换板的设备驱动程序。
