CBSE Class 12 Computer Science Notes PDF Class 12 Computer Science Notes. PDF Download Free. CBSE Schools Study Material. Class 12 Computer Science Notes PDF Chapter 1 Overview of CPP Chapter 2 Basic Concepts of OOP Classes & Objects Chapter 3 Data File Handling Chapter 4 Pointers Chapter 5 Data Structures Chapter 6 Database & SQL Chapter 7 Boolean Algebra Chapter 8 Communication Open Source Concepts