Sometimes we see this very confusing term on the internet and we want you to know there is no such thing as a digital pipe organ. Although some collegues want you to land on their website by using this term, these are the proper terms:
pipe organ: consists of wood and pipes.
digital organ: consists of computer chips, speakers and amplifiers.
combination organ: consists of a pipe organ with some electronics added on.
theatre organ: consists of electronics, amplifiers and speakers.
pump organ: consists of reeds, bellows and a pump