The branch of study which is concerned with the processes which can be represented as data in the form of programs and which interact with data is known as computer science. It focuses on the usage of algorithms for the manipulation, communication and storage of digital information. It also studies the theory of computing. Information science deals with the classification, collection, movement, retrieval, protection and storage of information. It seeks to study the usage and application of data and information for the purpose of improving, creating, understanding or replacing information systems. It is closely associated with computer science and technology. This textbook provides comprehensive insights into the field of computer and information science. It unfolds the innovative aspects of these fields which will be crucial for the progress in the future. Those in search of information to further their knowledge will be greatly assisted by this book.