The book "Fundamentals of Computer-Part I" serves as a comprehensive guide to understanding the essential concepts of computing. It is designed to introduce readers to the basics of computing, including the characteristics and classification of computers, their components, and the fundamental elements of a computer system. The book is structured into four detailed chapters that cover a wide range of topics such as input and output services, computer processors and memory, and interaction with computers. Each chapter delves into specific areas, providing in-depth explanations of various devices, operations, and terminologies related to computing. This book is an excellent resource for beginners and anyone looking to build a strong foundation in computer science.