操作系统的选择是由嵌入式系统的需求决定的。简单的说就是，中小型控制系统可充分利用uC/OS-II小巧且实时性强的优势，如果开发PDA和互联网连接终端等较为复杂的系统则uClinux是不错的选择。-the choice of operating system is embedded system needs a decision. Simply means that small and medium control system can take full advantage of embedded / OS-II real-time compact and powerful advantages, If the development of PDA and Internet access terminals, and other more complex system is uClinux is a good choice.