The study of computers and computational systems is known as computer science. It is mostly concerned with software and software systems including their theory, design, development, and application. Computer science encompasses the principal areas of artificial intelligence, computer systems and networks, security, vision and graphics, numerical analysis, programming languages, and software engineering. Programming paradigm is a way of classifying programming languages according to their features. The programming paradigm which is used to improve the quality, clarity, and development time of a computer program is termed as structured programming. Computer science is applied in designing and analyzing algorithms to solve programs and study the performance of computer hardware and software. As this field is emerging at a rapid pace, the contents of this book will help the readers understand the modern concepts and applications of the subject. It provides comprehensive insights into the field of computer science. This book will provide comprehensive knowledge to the readers.