# Serial communication | ![img \|150](https://upload.wikimedia.org/wikipedia/commons/thumb/9/9d/Serial_and_Parallel_Data_Transmission.svg/320px-Serial_and_Parallel_Data_Transmission.svg.png) | In telecommunication and data transmission, **Serial communication** is the process of sending data one bit at a time, sequentially, over a communication channel or computer bus. This is in contrast to parallel communication, where several bits are sent as a whole, on a link with several parallel channels. | |-|-| | | wikipedia:: [Serial communication](https://en.wikipedia.org/wiki/Serial_communication) | [[Universal asynchronous receiver-transmitter|UART]]