Serial Port: A port, or interface, that can be used for serial communication, in which only 1 bit is transmitted at a time. Most serial ports on personal computers conform to the RS-232C or RS-422 standards. A serial port is a general-purpose interface that can be used for almost any type of device, including modems, mice, and printers (although most printers are connected to a parallel port).

 

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Serial Port: A port, or interface, that can be used for serial communication, in which only 1 bit is transmitted at a time. Most serial ports on personal computers conform to the RS-232C or RS-422 standa . . . View Full Definition

Universal Serial Bus (USB): A 12Mbit/sec interface over a four wire connection. Can support up to 127 daisy chained devices. Very common interface for peripherals like keyboards, mice, and printers.

Parallel Port: A parallel interface for connecting an external device such as a printer. Most personal computers have both a parallel port and at least one serial port. On PCs, the parallel port uses a 25- . . . View Full Definition

Serial: Serial is a library in the arduino core software that enables serial communication using the rs232 protocol over a port opened between another serial device. You’ll most often hear the seria . . . View Full Definition