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计算机在开机使用时,主机和外围设备的开关顺序(开机时,打印机→显示器→主机;关机时,主机→显示器→打印机),对计算机的正常工
When the computer is turned on, the order of the switch on the host computer and the peripheral device (at startup, printer → monitor → host computer; shutdown → host → monitor → printer)