INPUTS/OUTPUTS

In computing, input/output or I/O is the communication between an information processing system (such as a computer) and the outside world, possibly a human or another information processing system. Inputs are the signals or data received by the system and outputs are the signals or data sent from it. The term can also be used as part of an action; to "perform I/O" is to perform an input or output operation. I/O devices include items such as monitors, keyboards, printers, Wi-Fi, or even a computer user.
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