A.
鼠标、键盘和打印机都可以通过 电缆 与计算机连接。 A mouse,a keyboard,and a printer might all be connected to a computer with cables.
B.
打印机电缆通常为数据的传输提供串行或并行的通道。 Printer cables typically implement a serial or parallel path for data to travel along.
C.
例如, 打印机打印结束后就会向计算机发出中断信号。 For example,when a printer has finished printing,it sends a continuous signal to the computer.
D.
声音可以通过连接在计算机上的麦克风输入,可以通过喇叭或耳机输出。 Input sounds can be entered through a microphone connected to the computer.Output sounds can be routed through speaker or headphones.