“A management information system (MIS) is a computerized database of financial information organized and programmed in such a way that it produces regular reports on operations for every level of management in a company.”
REF: According to http://www.inc.com/encyclopedia/management-information-systems-mis.html
A management information system (MIS) focuses on the management of information systems to provide efficiency and effectiveness of strategic decision making. The concept may include systems termed transaction processing system, decision support system, expert system, or executive information system. The term is often used in the academic study of businesses and has connections with other areas, such as information systems,information technology, informatics, e-commerce and computer science; as a result, the term is used interchangeably with some of these areas.