CBSE Class 11 Computer Science Syllabus 2020-21

In today’s digital world, Computer Science, as a subject is gaining importance in the educational field. Class 11 Computer science syllabus covers topics such as computer systems and organization, data management, etc which gives a basic understanding of the terms related to Computer Science. CBSE syllabus for Class 11 Computer Science for academic year 209-2020 is designed by subject experts after a detailed study and research. The syllabus also mentions the marks distribution and time duration for each topic. It also includes practical syllabus, assignments, and projects that need to be done in that particular academic year.

Download CBSE Class 11 Computer Science Revised Syllabus PDF for 2020-2021 

Given below the CBSE Class 11 Computer Science theory as well as practical syllabus for the academic year 2020-2021.

CBSE Class 11 Computer Science Syllabus and Marking Scheme



Unit Name Marks Periods
Theory Practical
1. Computer Systems and Organisation 10 10 5
2. Computational Thinking and Programming – 1 45 50 35
4. Society, Law and Ethics 15 20
Total 70 80 70

To know the syllabus of all the subjects of class 11 visit CBSE Class 11 Syllabus page at BYJU’S.

Practical Syllabus for Computer Science Along with Marking Scheme

S. No. Area Marks (Total=30)
1. Lab Test (12 marks)
Python program (60% logic + 20% documentation + 20% code quality) 12
2. Report File + viva (10 marks)
Report file: Minimum 20 Python programs 7
Viva voce (based on the report file) 3
3. Project (that uses most of the concepts that have been learnt)
(See CS-XII for the rules regarding the projects)

Python Programming: At least the following Python concepts should be covered in the lab sessions: expressions, conditionals, loops, list, dictionary, and strings. The following are some representative lab assignments.

  • Input a welcome message and display it.
  • Input two numbers and display the larger / smaller number.
  • Input three numbers and display the largest / smallest number.
  • Given two integers x and n, compute xn.
  • Write a program to input the value of x and n and print the sum of the following series:

Computer Science Syllabus Class 11

Download CBSE Class 11 Deleted Syllabus of Computer Science PDF 2020-21

Students can also view the deleted CBSE Class 11 Computer Science syllabus 2020-21 from the table below.

Topic reduced

Unit I: Computer Systems and Organisation 

Encoding Schemes : UTF8, UTF32 

Concept of cloud computing and cloud services (SaaS,IaaS,PaaS), cloud (public/private), Blockchain technology

Unit II: Computational Thinking and Programming – 1

Decomposition – concept, need for decomposing a problem, examples of problem solving using decomposition. 

Sorting algorithm: bubble and insertion sort; count the number of operations while sorting.

Suggested Practical List Input a list of elements, sort in ascending/ descending order using Bubble/ Insertion sort. 

CBSE Class 11 Computer Science Syllabus for Academic Year 2021-22

The CBSE has already released the latest CBSE Class 11 Syllabus for the academic year 2021-22 on their official website. Meanwhile, students can also download the Computer Science syllabus pdf of Class 11 CBSE from the link given below.

CBSE Class 11 Computer Science Course Structure 2021-22

     I Computer Systems and Organisation  10  10 10
   II Computational Thinking and Programming-1   45  80 60
   III  Society, Law and Ethics  15 20 —–
                          TOTAL 70 110 70


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