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Serial port

A connection or interface on the computer used to connect a serial device to the computer. Serial ports are typically identified on IBM compatible computers as COM (communications) ports. For example, a mouse might be connected to COM1 and a modem to COM2. With the introduction of USB, FireWire, and other faster solutions serial ports are rarely used when compared to how often they've been used in the past.

To the right is a close up of a DB9 serial port on the back of a computer.

  • Additional information and illustrations of computer serial ports can be found on our serial port help page.

Computer serial port

Also see: Connection, Motherboard definitions, Parallel port, Port, RS-232, Serial

 

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