The document discusses marketing information systems and their components. It defines a marketing information system as a computer-based system that works with other functional systems to support problem solving for marketing managers. The key components are input subsystems like accounting, marketing research, and intelligence systems; and output subsystems that provide information about products, place, promotion, price, and integrated marketing mixes. The marketing information system aims to gather and process various types of internal, external, and competitor data to support marketing decisions.