A personal computer(PC)is a computer that can perform all of its input,processing,output,and storage activities by itself. It contains at least one input device, one output device,one storage device,memory,and a processor.
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This solution would call for multiple sound output devices (on many systems, programs such as Festival and MPlayer can direct the output to a specific device) or coordinated input to one device.
这种解决方案需要调用多个输出设备(在许多系统中,Festival和MPlayer等程序可以将输出发送到特定的设备)或者在一个设备上协调输入。
You'll get 20 to 30 lines of output, one line per "device".one of the interesting lines on my computer says.
你会得到20到30行输出信息,每一行表示一个“设备(device)”。
One example of a multiple closure would be to route a single device output to two instruments, such as a voltmeter and a frequency counter.
复用开关的一个简单例子就是将单台设备的输出连接到2台仪器,例如一台伏特表和一台频率计数器。
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