An overview of the hardware and software components of ... internal checks; c) scan inputs; d) execute program logic; and e) update outputs. The program repeats with the updated outputs.

Becky Stern and the Digi-Key YouTube channel have created beginners overview video of Arduino inputs and outputs ... based on easy-to-use hardware and software. The official Arduino website ...

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().

Professor Hawking used an input device controlled by his cheek movements to choose the words he wanted to use. A special output device turned those words into electronic speech that people could hear.