It is a tiny device that takes input from a single source and delivers it to multiple displays simultaneously. It has a single HDMI input port and multiple HDMI output ports.

What does PC input/output actually mean? Find out inside PCMag's comprehensive tech and computer-related encyclopedia.

The Input/Output Model When you type on a keyboard, you're using an input device. When the letters you type appear on the screen, the screen is an output device.

In prior Java 101 articles, I referred to the concepts of redirection, standard input device, and standard output device. To demonstrate inputting data, several examples called System.in.read().