CBSE has now declared the revised sllyabus (Deduced sllybus) for class 9th to class 12th.
Click on the link given below to see Computer Science Deduced Syllabus 2020-21 for class 11th and 12th :-
http://cbseacademic.nic.in/web_material/CurriculumMain21/revisedsyllabi/Deduction/DELETEDComputer_Science_2020-21.pdf