Book 785 Multi-User Operating Systems. H. 1: Lecture Course" by Shirokov A. and . , Prokopchuk Yu. Yu. , Krapukhina N. In. , Gruzman B. A. Nikiforova S . In. It is a fascinating and deep dive into the world of multi-user operating systems, which play a key role in modern software and computing technologies. This publication will be of particular interest to students, graduate students and specialists in the field of computer science and computer science, as well as all those who seek to expand their knowledge in the field of operating systems and their architecture. The book opens the door for the reader to the complex and multifaceted world of multi-user systems, where several users can simultaneously work, interacting with the same system. The authors, with extensive experience in the development and research of operating systems, share their knowledge, explaining how multi-user systems are arranged, what tasks they solve and what technologies are at their core. Readers will be able to learn about the principles of such systems, their architecture and features, as well as how they provide security and stability while simultaneously operating multiple users. The topics raised in the book cover a wide range of issues, including resource management, handling user requests, and data security and protection issues. The authors not only explain the theoretical aspects, but also offer practical examples, which makes the material accessible and understandable even for those who are just starting their way in this field. The book will be useful not only for students, but also for practitioners who want to update their knowledge or understand new trends and technologies. The style of the authors is distinguished by clarity and accessibility of presentation, which allows the reader to easily assimilate even the most complex concepts. Each section of the book is logically structured, which contributes to a better understanding of the material. The authors use many examples and illustrations, which makes the learning process more exciting and interactive. This is especially important for technical literature, where complex ideas can be difficult to perceive. If you are interested in topics such as operating systems, multi-user architecture, programming and computer networks, then this book will be a real find for you. It will not only expand your knowledge, but also help you better understand how modern computing systems work. In addition, the book can be useful for exam preparation and thesis defense, as it covers many key aspects that may be relevant in the curriculum. In addition, "No. 785 Multi-User Operating Systems. H. 1: course of lectures" may be of interest to those who are looking for information about modern approaches to software development and management of systems. This book will be a great addition to the library of any student or IT specialist, as well as those who just want to understand how multi-user systems function. In conclusion, it is worth noting that this edition is the first part of the course of lectures, which implies the possibility of further in-depth study of the topic in the following parts. This creates intrigue and anticipation for the sequel, making the book even more appealing to readers seeking a deeper understanding of multi-user operating systems. Do not miss the opportunity to get acquainted with this unique work and expand your horizons in the field of information technology!