The Computer Science . At 2 p.m.. H. 2" authors Dubrovina O. In. , Host N. K. , Huseynova A. C. , Vasilieva I. In. , Sagittarius A. In. , Bokut L. In. and . Vishnevskaya O . G. is the second part of the tutorial, which immerses the reader in the fascinating and multifaceted world of computer science. This publication will become an indispensable assistant for students, schoolchildren and anyone who wants to understand the basics and current trends in the field of information technology . In the second part of the book, the authors continue to develop the topics covered in the first part, and delve into more complex aspects of computer science. Readers will be able to get acquainted with the principles of algorithms, the basics of programming, as well as learn about modern programming languages and their application in various fields. The book also covers topics related to databases, networking, and information security, making it relevant to those seeking to be on the cutting edge in the rapidly changing world of technology. This book will be interesting not only for students of technical specialties, but also for students preparing for exams in computer science, as well as for anyone who wants to expand their knowledge in this area. It is suitable both for self-study and for use in educational institutions. Readers interested in programming, software development and IT technologies will find in it a lot of useful information and practical examples. The topics raised in the book are not only relevant, but also important for understanding the modern world. In the context of digitalization and the rapid development of technology, knowledge of the basics of computer science becomes necessary for a successful career in any field. The authors emphasize the importance of critical thinking and analytical skills that will help readers not only cope with tasks, but also find creative solutions in difficult situations. The style of the authors is characterized by accessibility and clarity of presentation, which makes the material easy to perceive. They use many examples and tasks, which allows the reader not only to assimilate the theory, but also to apply it in practice. This is especially important in the field of computer science, where theoretical knowledge must be supported by practical skills. In addition to Computer Science. At 2 p.m.. H. 2", it is worth paying attention to other works of the authors, which can also be useful for studying computer science and related disciplines. Books such as "Basics of Programming" or "