What is the difference between serial communication and parallel communication

The difference between serial communication and parallel communication: 1. Parallel communication refers to a parallel communication port, which transmits eight signals at the same time and transmits a complete byte of information in parallel at a time. Serial communication refers to serial communication. The port can only transmit one signal in one direction. When transmitting one byte of information, it can only be transmitted bit by bit; 2. Parallel communication is to send multiple bits of data at the same time, while serial communication uses one line. 8-bit data is sent at different times; 3. Parallel communication has a fast sending speed and takes up more resources for short distances, while serial communication has a slow sending speed and takes up few resources for long distances.

# Operating system for this tutorial: Windows 10 system, Dell G3 computer.

I believe many people have heard of serial communication and parallel communication, so what is the difference between serial communication and parallel communication? Next, let me introduce it to you.

The difference between serial communication and parallel communication

1. Different definitions

Parallel communication refers to the parallel communication port, which transmits eight signals at the same time, transmitting a complete byte of information in parallel at a time; serial communication refers to the serial communication port, which can only transmit one signal in one direction. Only one binary bit can be transmitted at a time. When transmitting a byte of information, it can only be transmitted one bit at a time.

2. Communication is different

Parallel communication sends multiple bits of data at the same time; serial communication uses one line to send 8-bit data at different times. .

3. Different characteristics

Parallel communication has a fast transmission speed, but the transmission distance is short and takes up more resources, while the serial communication has a long transmission distance and takes up less resources, but the transmission distance is long Slow.

Serial communication mainly plays the role of data transmission between the host and peripherals and between hosts. It has the characteristics of few transmission lines and low cost. It is mainly suitable for short-distance human-computer exchange, real-time monitoring and other system communications. At work.

Parallel communication is the transmission of multi-bit data through parallel lines at the same time. This greatly improves the data transmission speed, but the length of the parallel transmission line is limited, the interference will increase, and the data will be prone to errors.

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