According to an exemplary embodiment of the invention, an interactive type information system used for providing user data is disclosed. A control unit preprocesses data selected from original data. The original data is received from at least one separate data source. The selected preprocessed data is then transmitted to a user interface device. The data is further processed and interactively displayed at the user interface device. The user data is transmitted to the user interface device as an array of data points via a fixed maximum size packet. Even if network connection between the controlunit and a user interface might be very terrible, which means the network connectivity and/ or bandwidth are very low, the user data can still be transmitted to the user interface device.