Computer has firmly carved its place in the human society. Computer makes our job easier and has reshaped our imagination. The world of technology and computer systems is continuously evolving and has touched virtually each and every aspect of our lives. The Computer Science Success series is based on Windows 10 and Office 2016. This series is specially designed for providing a vast theoretical and practical knowledge of computers to the students. It is the most comprehensive series in which activity and tool-based approach is incorporated. Each chapter in the book begins with an engaging introduction followed by an activity–based approach to learning, which is supported with ample number of diagrams, pictures and relevant screenshots. The exercises in each chapter have sufficient practical and activity–based questions. Interesting software like MS-Paint has been taught in these books. Core features of Computer Science Success series (for Classes 1 and 2 ) are:  Learning Objectives: Describes the goals required to be achieved by the end of the chapter.  Chapter Contents: Concepts are explained to strengthen the knowledge base of the students.  Do and Learn: Provides activities that helps in learning the concepts being taught.  Know More: Gives extra and useful information on the topic being covered.  Summary: Gives a brief summary of the topics being taught in the chapter.  Exercises: Includes a variety of questions to evaluate the theoretical knowledge of the students.  Activity Zone: Gives activities that helps the students to connect the concepts taught through life experiences.  Learn With Fun: Gives instructions to the students for performing various tasks.  Teacher’s Notes: Gives suggestions to the teachers to make learning better.  Periodic Tests: Four periodic tests are included to evaluate the knowledge of the students.  Model Test Papers: Two Model Test Papers, covering questions from all the chapters are included in the middle and towards the end of the book.  Project Work: A set of projects has been designed to challenge the students to apply the concepts learnt.  Cyber Olympiad: Gives a sample Cyber Olympiad question paper to test the knowledge of the students.  Practice Assignments(in a separate booklet): Includes both Practice Assignments and Quizzes, that helps the students to understand the topics given in the chapter thoroughly Goyal Brothers Prakashan