说明：  从RTOS（嵌入式实时操作系统）发展的历史、RTOS市场和技术发展的变化、RTOS的未来及RTOS在中国几个方面，给出RTOS的现状、未来发展方向及RTOS的应用领域：系统级、板级、SOC级
(From the RTOS (real-time embedded operating system) the history of the development, RTOS market changes and technological development, RTOS and RTOS future in China, few aspects of RTOS given the current situation, future development direction and RTOS application areas: the system level, board-level, SOC-class)