In this article, we analyze how device control works in both operating systems, examining everything from architecture to system calls and focusing on the differences.
本文分析两种操作系统的设备控制原理，探究从架构到系统调用的各个方面，重点比较二者差别。
The NAS device uses an internal operating system，which acts as a control mechanism for managing data storage，semantics and control for reading and writing data onto its disks.
NAS设备采用一个内部操作系统，该操作系统起到了管理数据存储、语义和控制磁盘数据读写等控制作用。
But owing to addition of ice storage device to air conditioning system, the system flow intricacy degree is increased and put higher claim to operating project and control system.
但是由于冰蓄冷空调系统中加入了关键设备——蓄冰装置，系统流程复杂程度增大，对运行控制方案和控制系统提出了更高的要求。
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