ICT is the abbreviation of information and communication technology, which refers to the combination of information technology and communication technology. Refers to the technology and knowledge involved in computer science and technology, software engineering, information security and other fields. CT refers to the technology and knowledge involved in electronic information engineering, automation, communication engineering, photoelectric information science and engineering, Internet of Things engineering and other fields. The concept and technical field of ICT is to increase the knowledge and technology in communication field on the basis of information technology and realize the integration of information and communication.