Class 12 classes and object with oops in C++ handwritten notes question with solution pdf download. NCERT class 12 computer science handwritten notes PDF free download for CBSE school and state board school students of computer science must download the computer science notes for school of class 12 by ershanti computer science teacher notes PDF and get good marks this note is detailed and comprehensive notes which covers the complete computer science syllabus of class 12 computer science which is based on NCERT syllabus and CBSE syllabus pattern.