What is Input & Output?

Input is what goes into something and output is what you get out. In terms of computing, data going in is input and data that comes out is output. When you type something on your keyboard, you are sending input to your computer. It responds by displaying what you type on your monitor. That is output. Movements and clicks with your mouse are the same. They are inputs. You see the pointer move on your screen, which is output. When you print something or if you are playing music on your computer, that is output. Installing software can be input, or copying files onto your computer from a disc, a USB key, a digital camera etc. can also be input.