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().

Output devices include speakers, monitors and printers. This explanation includes how input devices are converted into binary code, and how wireless devices like tablets have both inputs and outputs.

Examples of input devices include a keyboard, a mouse, a microphone and a webcam. Output devices include speakers, monitors and printers. This explanation includes how input devices are converted ...