Compiled as per the new (2024-2025) syllabus of the West Bengal Higher Secondary Education Council Each chapter is explained in simple language with appropriate information, images and program codes and is accompanied by various interesting images, videos and information via QRcodes. A lot of MCQs are added as per the prescribed question pattern of the West Bengal Higher Secondary Education Council Model Question Papers with Answers, Projects, Bookkeeping Samples, Practical and Project Aid sections are attached, The ubuntu operating system is specifically designed to work using commands on Linux/Unix operating systems At the end of each chapter, the latest discoveries in computer science are highlighted