Abstract: Provided is a portable Internet terminal apparatus for wireless broadband Internet, including: a processor core unit controlling a wireless Internet connection or a wired Internet connection if the wireless connection to the Internet is difficult or impossible; a user input and output unit controlling connections to peripheral devices comprising a display, a key pad, and a transmitter and/or receiver to provide an input and output user interface for a user who uses the Internet provided under the control of the processor core unit; and a network access unit providing an Internet connection function under the control of the processor core unit.