Systematic Computing: Understanding Computer Organisation and Architecture (ISBN: 978-93-48717-95-5), published by Guru Shishya Publication, is an insightful and comprehensive text designed to meet the academic requirements of students studying Computer Organisation and Architecture. Authored by Harleen Kaur Malhotra, Prachi Satav Kharate, Megha Chokhada, and Rounak Bharadwaj, the book systematically explains the fundamental and advanced concepts of computer systems, bridging the gap between theoretical knowledge and practical understanding.This book provides a clear exposition of topics such as the basic structure of computers, CPU organization, instruction formats, addressing modes, control unit design, memory hierarchy, inputoutput organization, pipelining, multiprocessors, and advanced architectures. Each chapter is structured to align with the standard syllabus of Computer Architecture courses, making it a reliable academic resource for undergraduate and postgraduate students of computer science, engineering, and information technology.Written in a lucid style with supporting examples, diagrams, and explanations, the text not only clarifies the core principles of computer organisation but also connects them with real-world system design. The book is particularly valuable for learners preparing for university examinations as well as competitive exams in the field of computing.With its systematic approach, detailed coverage, and emphasis on both fundamentals and emerging topics, Systematic Computing: Understanding Computer Organisation and Architecture serves as a one-stop reference for anyone aiming to build a solid foundation in computer architecture.