Electronic information category. Computer application and maintenance major mainly trains the construction of computer information system, which enables people to have the ability to engage in computer software development and belongs to the category of electronic information. Electronic information majors take electronic systems, computers, networks and communications, optoelectronics, optical communications, artificial intelligence, big data and other technologies as the main means. The research on information acquisition, transmission and processing is characterized by the integration of science and engineering and the combination of software and hardware. It strengthens the foundation of mathematics, physics, circuits and other disciplines, and at the same time strengthens the cultivation of engineering practice ability and innovative cooperation consciousness.