Which of the following statements best represents the difference between an input device and an output device?
1
An input device is a peripheral used to provide data and control signals to a computer, whereas an output device is used to receive information from the computer.
2
An output device is any piece of computer hardware equipment used to provide or to communicate the results of data processing to the user, whereas an input device only allows users to view the processed data.
3
An input device, such as a mouse, sends instructions to the computer, while an output device can only be a monitor.
4
Input devices are not essential for a computer to function, while output devices are necessary for any computing process.