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

A peripheral device (hardware) that generates input for the computer such as a keyboard, scanner, mouse or digitizer tablet. Contrast with output device.

Input devices like keyboards, touchscreens, webcams and game controllers are designed and built to digitise the information they receive before sending it to the computer CPU for processing.

Revise hardware devices and how they allow us to communicate with our computer systems, for National 4 Computing Science.

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().