At this point, you can request that the devices be enumerated, which shows the various devices simulated for this PDP-15 (floating-point processor, paper tape reader, paper tape punch, and so on).
在这一点上，您可以要求枚举设备，显示此PD P - 15的各种仿真的设备(浮动点处理器、纸带读取器、纸带打孔，等等)。
2
Both the attendance machine and external card reader are mounted on the wall. A mental wall or gate will shorten greatly the distance to punch card, even make it unable to work.