The electronic organ is one of the newest types of organ. They use electronics to simulate the sound of a pipe organ and many other instruments. Because of this, they do not need to be very big and many are no bigger than a piano so that they can fit in homes, schools, or can be moved around as needed. They also do not go out of tune because it holds all its sounds on computerized chips. Many organists think they do not feel as good to play as a traditional, mechanical pipe-organ.