An optical jukebox is like a very big and fancy CD player that can hold a lot of CDs all at once. Imagine you have a toy box that you put all your toys in, but instead of toys, you put a bunch of CDs in it. The optical jukebox is like that toy box, except instead of taking one CD out at a time, you can choose which CD you want to listen to on a computer. The computer asks the optical jukebox to find the CD you want to listen to, just like how you might ask your mom or dad to find your favorite toy in your toy box. The optical jukebox then gets the CD and puts it in a special reader that can play the music on the CD, just like how you would put a toy back in its right spot in the toy box. Pretty cool, right?