A data processing device including a first reception unit configured to receive data and store the data in a first storage unit; a process control unit configured to acquire the stored data and sequentially execute process units with respect to the acquired data; a second storage unit configured to store data corresponding to an execution result obtained up to one of the process units, when the one of the process units is suspended; and a moving unit configured to move the data stored in the second storage unit to the first storage unit in response to receiving a request to process the data stored in the second storage unit. The process control unit executes the process units from and beyond the suspended one of the process units, with respect to the data that has been moved from the second storage unit to the first storage unit.