General business items include: Internet security services; Internet data service; Network technical services; Software development; Artificial intelligence basic software development; AI application software development; Software outsourcing services; Network and information security software development; Artificial intelligence theory and algorithm software development; Internet of Things technical services; General application system of artificial intelligence; Data processing service; Information technology consulting services; Data processing and storage support services; Information system operation and maintenance service; Computer system services; Wholesale of computer software and hardware and auxiliary equipment; Domestic trade agency; Internet sales (excluding the sales of goods that need to be licensed); Retail of computer software and hardware and auxiliary equipment; Internet equipment sales; Software sales; Sales of information security equipment; Network equipment sales; Internet of Things equipment sales; Calculator equipment sales; Trade agency; Information system integration services; Technical services, technical development, technical consultation, technical exchange, technology transfer and technology promotion; Advertising design and agency; Graphic design and production; Professional design services; Engineering technical services (excluding planning management, survey, design and supervision); Conference and exhibition services; Sales of digital video monitoring system; Security system monitoring service; Education consulting services (excluding education and training activities involving license approval); Car washing service; Sales of car washing equipment; Sales of automobile decoration products