The data are loaded through simulating serial data transmission by I/O interface.
热敏打印头采用I/O口模拟串行数据传输实现数据加载。
CommPort is the data transmission channel between PC and the outside serial equipment.
串口是常用的计算机与外部串行设备之间的数据传输通道。
The use of computer data transmission, the commonly used is the serial communication.
计算机进行数据传输时，常用的是串行通信方式。
The use of computer data transmission, the commonly used is the serial communication.
计算机进行数据传输时，常用的是串行通信方式。
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