The book "Computer Information Technologies: Educational and Methodological Manual . H. 2" by A. M. Severneva is an important and relevant work that will become an indispensable assistant for students, teachers and anyone interested in modern technologies in the field of computer science. This edition is a continuation of the first part and deepens the knowledge of readers in the field of computer technology, giving them the opportunity to master new aspects that are of great importance in our digital world. The second part of the manual covers a wide range of topics, including the basics of programming, working with databases, network technologies and much more. Author, A. M. Severnev is known for his accessible and understandable style of presentation, which makes complex concepts easier to perceive. He masterfully combines theory with practical examples, which allows readers not only to assimilate the material, but also to apply it in practice. This manual will be an excellent resource for those who want to deepen their knowledge in the field of information technology and prepare for the real challenges faced by specialists in this field. The book will be especially useful for students of technical specialties, as well as for teachers who are looking for quality materials for their courses. It may also be of interest to IT professionals who want to update their knowledge or master new technologies. The age category of readers is not limited, as the manual is suitable for both beginners and more experienced users seeking to expand their horizons. The topics raised in the book are relevant and important for understanding the modern world. In the conditions of rapid development of technologies and their influence on various spheres of life, knowledge of computer information technologies becomes not just an advantage, but a necessity. Severnev focuses on how information technology is changing business processes, educational systems, and even everyday life. Readers will be able to see how these technologies affect performance, communication, and access to information. The author's style is clear and logical. He skillfully uses examples from real practice, which makes the material more visual and understandable. Severnev is also known for his other work in computer science, which has gained recognition among both students and professionals. His approach to teaching and knowledge transfer makes his books in demand and relevant. If you are looking for a tutorial that will help you understand the world of computer information technology, "Computer Information Technology: A teaching aid. H. 2" is what you need. This book will be your reliable companion in the study of complex topics and will help you confidently keep pace with the rapidly changing world of technology. Do not miss the opportunity to expand your knowledge and skills that will open up new horizons in your career and personal life.