parallel line interface

On traditional parallel machines, users organize and manage the file system through command line interface, which makes users feel very inconvenient.

在传统的并行机上，用户通过命令行接口对文件系统进行组织和管理，这给用户带来了诸多的不便。

The long line transmission technology of two-way parallel interface bus of monolithic compnters is analysed and discussed. Solutions are given, which have high value in engineering applications.

本文针对单片机双向并行接口总线的长线传输技术进行了分析和讨论，并给出了解决方案，具有较高的工程实用价值。

Through analyzing the inner structure of the parallel interface chip 8255A and some examined examples, this paper puts forward that the link of the 8255A address line is not unique.

通过对并行接口芯片8255A内部结构的分析和实例的验证，得出8255A地址线的接法不唯一的结论。