总线是指一组进行互连和传输信息的信号线，这组信号线一般都包括地址线、数据线、控制线、电源线等几种信号线。微型机系统所使用的芯片内部、电路插件板元器件之间、系统各插件板之间、系统与系统之间的连线，都由各自的总线把各部分组织起来，从而组成一个能彼此传输信息和对信息进行加工处理的整体

-bus is a group of interconnection and transmission of information to the signal line, this group of signal lines typically include address lines, Data line, the line of control, power lines several signal line. Microcomputer system used by the internal chip, plug-in circuit board components, and systems between the pinboard. between system and system connectivity, by their own bus in various tissues, thus formed a mutual transmission of information and information processing as a whole