Computer Processes This is the process that a computer makes when it’s told to complete a task. The programme could be Photoshop, for example. The user ‘inputs’ into the computer by pressing a button or clicking a mouse, the computer then changes state and ‘updates’ itself. The update is then shown on a screen and this is called the ‘output’. Without the output, with wouldn’t know that the update has taken place. Sometimes the output is audio based as well as visual, such as a sound being made when you place something in the recycling bin on your desktop. In ‘Pong’, the user creates the input by pressing the up or down button. The update is the paddle moving up or down as a result, and the output is the paddle shown as moving on the screen.

- Input (Press the up or down key) - Update (Paddle moves) - Output (Screen shows paddle moving)