Computer inputs and outputs (I/O) are the means by which a computer exchanges information with the outside world. There are many different types of I/O, but the most common are input devices such as a keyboard and mouse, and output devices such as a monitor and printer.

Input devices allow you to enter information into the computer, such as when you type on the keyboard or click on the mouse. Output devices display information that the computer has processed, such as the text you are currently typing or the image on the monitor.

Most computers have a variety of input …