The text is written for business students, most of whom will become potential managers, entrepreneurs, or management-level professional who will use and manage information systems. Achieving this goal will be difficult without knowledge of the indispensable role of information system in business operations, management decision-making and the strategic success of organizations. This book is designed to provide such a knowledge-base. Its goal is to help students become managerial end-users who can propose and participate in developing information system solutions to business problems. It treats the subject area known as Information System (IS), Management Information system)MIS), or Computer Information System (CIS) as a major functional area of business that is as important to management education as the areas of accounting, finance, operations management, marketing and human resource management. This book, written in a simple language meets the syllabus requirements of the latestsyllabus of B.B.A., B.Com., B.Com (CA) B.Sc. (ISM) courses of Bharathiar and other South Indian Universities. The glossary provides a quick reference to all key terms used in the subject.