They can't be changed. The Arithmetic Logic Unit - this sorts all of the information and does all of the moves. Random Event Generator - this makes things happen differently every time so that you can't find a pattern. The Bus - this is the wiring connection to different parts of the game. Output Chips - they send the information to the Screen.
Later Parents wonder how video games effect their children.
These questions remain unanswered but might be answered in the future. My personal prediction for the future of Video Games is that all of the very popular games will have all of their sequels come out. I think that a new special kind of glasses will come out that allows the player to see secrets on the screen. The glasses would have a special magnetic wave that flows in the air. The wave connects to the system so that it will know if you have the glasses.