设备管理文件系统，devfs的好处(第4部分)。
The benefits of devfs, the device management filesystem (Part 4).
操作系统包括处理机管理、存储器管理、设备管理、文件管理和作业管理五大类管理功能。
The operating system including processor management, memory management, equipment management, file management and operation management five kinds of management functions.
设备管理系统模型增加的配置文件模块解决了流程控制结构不清晰和实时响应性，使得流程更加明确、能更好控制导航；
The config file modules solves the problem of unclear process control structure and improves real time response, it makes process more clear, better supports controlling of navigation.
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