Computer Serial Ports

Computer Serial Ports

A computer serial port is a type of communication interface that enables the transfer of data between a computer and an external device. It is a physical connector that allows serial communication, which means that data is sent one bit at a time over a single wire. Serial ports were commonly used in the past for connecting devices such as modems, printers, and mice to computers. However, with the advent of newer technologies such as USB, serial ports have become less common. Serial ports typically use a 9-pin or 25-pin connector, and they can transmit data at speeds ranging from 300 bits per second (bps) to 115,200 bps. They are often used for tasks that require a low data transfer rate, such as configuring network devices or programming microcontrollers. Serial ports can also be used for debugging and troubleshooting purposes, as they allow for direct communication between a computer and a device. One of the advantages of serial ports is that they can transmit data over long distances without the need for repeaters or signal boosters. However, they are limited in terms of the amount of data they can transmit at any given time, and they are not well suited for high-speed data transfer. In summary, a computer serial port is a communication interface that allows for the transfer of data between a computer and an external device. While they are not as common as they once were, serial ports are still used for certain tasks that require a low data transfer rate or direct communication between a computer and a device.

communication interface, data transfer, low data transfer rate, direct communication, external device

— David Harris

CITATION : "David Harris. 'Computer Serial Ports.' Design+Encyclopedia. https://design-encyclopedia.com/?E=306947 (Accessed on July 01, 2025)"