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DOS环境下的网络实时通信技术已广为使用,有关文章已屡屡见诸报端。其主要原因是在DOS中可直接使用或修改中断例程和对网卡端口进行操作。而在Win-dows操作系统中,中断处理程序包含在设备驱动程序之中,由Windows在环境初始化时安装,修改比较麻烦。Windows 3.X虽然支持网络系统,但只能实现文件和资源共享,缺少点对点的网络实时通信功能,而在各种实时应用项目中,工作站之间的程序级网络实时通信功能是必需的。所幸的是Windows 3.X支持NetBIOS网络协议,这为我们开发网络实时通信软件奠定了基础。一、Windows环境下的NetBIOSNetBIOS(Network Basic Input/Output System)是由IBM为局域网通信而开发的协议,有很多软件商都
The network real-time communication technology in DOS environment has been widely used, the article has repeatedly appeared in newspapers. The main reason is that DOS can be used directly or modify the interrupt routine and port on the card operation. In the Win-dows operating system, the interrupt handler is included in the device driver, installed by the Windows in the environment initialization, modify more trouble. Although Windows 3.X supports networked systems, it can only share files and resources, lack of peer-to-peer network real-time communication capabilities, and program-level network real-time communication between workstations is required in various real-time applications. Fortunately, Windows 3.X support NetBIOS network protocol, which laid the foundation for our development of network real-time communication software. A, Windows environment NetBIOSNetBIOS (Network Basic Input / Output System) is developed by IBM for the LAN communication protocol, there are many software vendors are