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使用Palm掌上电脑与少量的零件制作出小巧但功能强大的机器人-The use of Palm handheld computers and a small number of parts produced small but powerful robot

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文字操作系统与外部最主要的接口就叫做shell。shell是操作系统最外面的一层。shell管理你与操作系统之间的交互:等待你输入，向操作系统解释你的输入，并且处理各种各样的操作系统的输出结果。 -Language operating system with the external interface is called the main shell. shell is the outermost layer of the operating system. Managing your shell interaction with the operating system: waiting for your input, to the operating system, explain your input, and handle a variety of operating systems output.

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