There is provided a projector including a projection control unit which controls a projection of a background window and computes location information of at least one projection window projected on the background window, a performance sensing unit which senses an object performance on the background window and the at least one projection window, a communication unit which communicates with at least one other projector different from the projector, and an information control unit which controls an operation of each of the at least one other projector, the operation corresponding to the object performance.