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本系统由两台AppleⅡ微机和有关外部设备组成。其中一台(A机)完成钻井数据的实时采集、数据换算、显示等任务,配置显示器、键盘、模拟量、数字量输入卡、实时钟卡。另一台(B机)主要完成数据处理任务,配备显示器、键盘、打印机、绘图仪、双软盘驱动器。A机采用连续工作方式;B机根据需要,在不进行数据处理时可以进行其他工作,也可暂时关机。A,B两机通过双端口存储器实现通讯。双端口存储器电路包括2K×8位RAM、总线仲裁机构和A,B机接口,做成两块电路板,分别插入A,B机的I/O插槽中。电路板之间用26芯扁平电缆连接。
The system consists of two Apple Ⅱ microcomputer and related external devices. One of them (A machine) to complete the drilling data real-time acquisition, data conversion, display and other tasks, configure the display, keyboard, analog, digital input card, real-time clock card. Another (B machine) to complete the main data processing tasks, equipped with monitors, keyboards, printers, plotters, dual floppy drives. A machine using continuous work; B machine according to need, without data processing can be other work, but also temporarily shut down. A, B two-port communication through dual-port memory. Dual-port memory circuit includes 2K × 8 RAM, bus arbitration mechanism and A, B machine interface, made of two circuit boards, respectively, into the A, B machine I / O slots. 26-pin flat cable between the circuit board connection.