Information exchange is fundamental to the existence and development of human society. The means of storing and passing on information has been continuously evolving alongside improvements in productivity, in response to the growing demand for immediate access to information. Communication technologies have developed from pigeon delivery in ancient times, to telegraph and telephone in the modern era, and to mobile communication today, profoundly changing our lifestyles, production modes, and social contact modes. It is no wonder that studies on scientific development, technological progress, production innovation, and economic growth defined information communication as a general purpose technology (GPT)—a technology that has revolutionary impact on the progress of society, along with materials, transportation, and power supply systems.