The document provides an introduction to management information systems (MIS). It defines MIS as a computer-based system that presents both internal and external information to support the decision-making process. MIS utilizes hardware, software, and manual procedures to analyze, plan, control, and make decisions. While MIS does not make decisions itself, it assists managers by providing consistent, accurate, timely, and relevant information as an input to the decision-making process. The document also discusses the components, functions, uses, and types of information systems.