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.

In addition to these input/output devices, other types of peripherals include computer data storage devices for auxiliary memory storage, where data is saved even when the computer is turned off.

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

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().