POS Support

Does my printer have a Serial or Parallel Connection?
6 February 2018

does my printer have a serial or parallel connection?

The parallel port found on computers is for connecting peripherals, where many bits of data are sent at once, in parallel communication, and requires multiple data lines in their cables and are also larger than the modern serial ports. Modern computers tend to be manufactured without serial ports, and require serial-to-USB converters to allow compatibility with Serial / RS-232 serial devices.

The serial port is a serial communication interface, that sends bits of data, one at a time, requiring one data line and are smaller than the parallel ports. Suprisingly and interestingly, interfaces such as Ethernet, FireWire, and USB sends data as a serial stream. Serial port identifies hardware as compliant to the RS-232 standard, intended to interface with a modem or with a similar communication device.