What is Output?
A display device visually conveys text, graphics, and video information.A printer produces text and graphics on a physical medium graphics on a piece of paper without actually striking the paper.
What is Input?
Input devices are components or peripheral devices that feeds data or instructions into a computer or other computational devices for display, storage, processing, or outputting or transmission. They convert the instructions and analog data like graphics, sound, pictures into digital signals that can be processed by a computer. Examples of input devices are mouse, bar-code reader, magnetic-stripe reader, keyboard, modem, scanner, graphic tablet and stylus.
keyboard
mouse
touchpad
modem