What is Output?
Output is data that has been processed into a useful form. An output device is any type of hardware component that conveys information to one or more people.
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.
monitor
printer
speakers
CPU
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
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