Computer science is the discipline concerned with processes that can be encoded as programs and interact with data. It emphasizes the utilization of algorithms for manipulating, communicating, and storing digital information. It also explores the theoretical aspects of computing. Information science encompasses activities such as categorization, gathering, transfer, retrieval, safeguarding, and storage of information. It aims to explore how data and information are utilized and applied to enhance, develop, comprehend, or replace information systems. Information science is closely linked with computer science and technology. This book is a valuable compilation of topics, ranging from the basic to the most complex theories and principles in the field of computer and information science. Different approaches, evaluations and methodologies and advanced studies on computer and information science have been included herein. This textbook will provide comprehensive knowledge to the readers.