11 th standard computer science subject. Common to 11 std computer applications. New syllabus ( 2019 regulations) Introduction to computer, Number system, Computer organisation, Theoritical concepts of operating system, working with operating system, Algorithmic problem solving_ Specification and abstraction, Composition and decomposition, Iteration and recursion, and questions and Answers. A. Jaya Mabel Rani, Asst Prof, computer science department.