Parallel DEVICE!!!!

:: http://en.wikipedia.org/wiki/Parallel_port

A parallel port is a type of interface found on computers (personal and otherwise) for connecting various peripherals. It is also known as a printer port or Centronics port. The IEEE 1284 standard defines the bi-directional version of the port.At the consumer level, the USB interface—and in some cases Ethernet—has effectively replaced the parallel printer port. Many manufacturers of personal computers and laptops consider parallel to be a legacy port and no longer include the parallel interface. USB to parallel adapters are available to use parallel-only printers with USB-only systems. However, due to the simplicity of its implementation, it is often used for interfacing with custom-made peripherals, such as the RepRap 3d printer.

What is a parallel device?
How do you use parallel device?
What is the use for parallel device?
Where do you plug it in?
What would you use a parallel device for?