Data processing apparatus and the contents data transmitter

The data held in a portable information terminal with a simple task to send to the desired device to be handled properly. Receiving device 410 includes a wireless LAN communication unit 420 and the infrared receiver 82, in response to the infrared reception section 82 of the same device as the received data received data by the wireless LAN communication unit 420, infrared receiver 82 the process defined by the received data and a processing unit 422, 424 performed on the received data of the wireless LAN communication unit 420. Without or specify how to handle on the side of the receiving apparatus 410, the data can specify the transmission of data to be processed on the side of transmitting the processing for it.