Chapter 5 and 6 are the realization of data input module and data output module, which includes module partition, inner structure of submodules and the timing relationship of main signals.

第五章和第六章分别阐述了数据输入模块和数据输出模块的具体实现，包括模块划分、子模块的内部结构以及主要信号之间的时序关系。

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The controller signals the main application to retrieve its results.

控制者就向主应用程序发出检索这个结果的信号。

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Wireless technology can be split into five main sorts, roughly ranked by the distance that the signals travel.

按照信号传输距离粗略的划分，无线技术可以分为五类。

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Signals can make it only so far before breaking apart, so Main.net uses electronic devices called repeaters that sit on the lines and continuously catch the internet signals, recompose and bolster them, and shoot them out again.

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Main.net uses a related technology called direct sequence spread spectrum, or DSSS, to send its signals down the power line.

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