A Simon Model is a computer memory system where the computer stores information like a game of Simon Says. It works by memorizing patterns of numbers and letters. To play, the computer will show a random pattern of numbers and letters, and then you have to copy that pattern by pushing the buttons in the right order. The computer will then check to see if you got it right, and if you did, it will show another pattern. The game gets harder each time by adding more letters or numbers in the pattern. It's a fun way to help you practice your memory skills!