Computer Integrated Manufacturing (CIM) has evolved into a cornerstone of modern manufacturing engineering, integrating computer-aided design, manufacturing, process planning, production control, robotics, automation, industrial communication, and enterprise information systems into a unified manufacturing environment. It is now a core subject in engineering and technology programmes worldwide.Since the introduction of the microprocessor and programmable automation, manufacturing has undergone a profound transformation. Computer-controlled machine tools, industrial robots, flexible manufacturing systems, and automated workstations have greatly improved productivity, quality, flexibility, and cost efficiency.Today, the convergence of Industry 4.0 technologies-including the Industrial Internet of Things (IIoT), cloud computing, artificial intelligence, digital twins, and cyber-physical systems-has further expanded the scope of CIM. Manufacturing facilities distributed across the globe can collaborate seamlessly, enabling real-time monitoring, predictive maintenance, and synchronized production within global supply chains.This book provides a comprehensive introduction to the principles, technologies, and implementation of Computer Integrated Manufacturing. Combining theoretical foundations with practical applications, it is an essential resource for undergraduate and postgraduate students, seeking to understand how digital technologies are transforming modern manufacturing.