Compared with the traditional operating system, the embedded os has some specifications, such as real time, high efficiency, hardware dependency, fixed software, etc . and to be based on internet and special application is the trade of the embedded os " development 与通用操作系统相比较,嵌入式操作系统在系统实时高效性、硬件的相关依赖性、软件固态化以及应用的专用性等方面具有较为突出的特点。面向internet和特定应用是嵌入式操作系统重要发展趋势。