CBSE Syllabus For Class 12 Computer Science 2021 | Revised & Deleted

CBSE Syllabus For Class 12 Computer Science: Computer Science is the study of computer technology, both hardware, and software. With the latest CBSE Syllabus for Class 12 Computer Science, you will get to know the chapters and concepts to be covered in all topics. It will also let you know the weightage in various topics for the board exam.

You should have a depth concept in every topic of Class 12 Computer Science to score better marks CBSE Class 12 Board exam. In this article, you can check the detailed CBSE Syllabus for Class 12 Computer Science for better preparation.

Revised CBSE Syllabus for Class 12 Computer Science 2021

To prepare correctly for CBSE Computer Science, you must have the latest CBSE Class 12 Computer Science Syllabus along with books and other study materials.

CBSE updates the Class 12 Syllabus every year to provide the most updated curriculum to students. You can check and download the latest CBSE Syllabus For Class 12 Computer Science 2020-21 from below.

CBSE Syllabus For Class 12 Computer Science Unit I: Computational Thinking and Programming – 2

  • Revision of the basics of Python covered in Class XI.
  • Functions: scope, parameter passing, mutable/immutable properties of data objects, passing strings, lists, tuples, dictionaries to functions, default parameters, positional parameters, return values, functions using libraries: mathematical and string functions.
  • File handling: Need for a data file, Types of file: Text files, Binary files, and CSV (Comma-separated values) files.
  • Text File: Basic operations on a text file: Open (filename – absolute or relative path, mode) / Close a text file, Reading and Manipulation of data from a text file, Appending data into a text file, standard input/output and error streams, relative and absolute paths.
  • Binary File: Basic operations on a binary file: Open (filename – absolute or relative path, mode) / Close a binary file, Pickle Module – methods load and dump; Read, Write/Create, Search, Append and Update operations in a binary file.
  • CSV File: Import csv module, functions – Open / Close a csv file, Read from a csv file and Write into a csv file using csv.reader ( ) and csv.writerow( ).
  • Using Python libraries: create and import Python libraries.
  • Recursion: simple algorithms with recursion: print a message forever, the sum of first n natural numbers, factorial, Fibonacci numbers; recursion on arrays: binary search.
  • Idea of efficiency: performance measurement in terms of the number of operations.
  • Data-structures: Lists as covered in Class XI, Stacks – Push, Pop using a list, Queues – Insert, Delete using a list.

CBSE Syllabus For Class 12 Computer Science Unit II: Computer Networks

  • Evolution of Networking: ARPANET, Internet, Interspace Different ways of sending data across the network with reference to switching techniques (Circuit and Packet switching).
  • Data Communication terminologies: Concept of Channel, Bandwidth (Hz, kHz, MHz) and Data transfer rate (bps, Kbps, Mbps, Gbps, Tbps).
  • Transmission media: Twisted pair cable, coaxial cable, optical fiber, infrared, radio link, microwave link, and satellite link.
  • Network devices: Modem, RJ45 connector, Ethernet Card, Router, Switch, Gateway, WiFi card.
  • Network Topologies and types: Bus, Star, Tree, PAN, LAN, WAN, MAN.
  • Network Protocol: TCP/IP, File Transfer Protocol (FTP), PPP, HTTP, SMTP, POP3, Remote Login (Telnet) and Internet, Wireless / Mobile Communication protocol such as GSM, GPRS and WLL.
  • Mobile Telecommunication Technologies: 1G, 2G, 3G, 4G, and 5G; Mobile processors;
  • Electronic mail protocols such as SMTP, POP3, Protocols for Chat and Video Conferencing: VoIP, Wireless technologies such as Wi-Fi and WiMax
  • Network Security Concepts:
  • Threats and prevention from Viruses, Worms, Trojan horse, Spams Use of Cookies, Protection using Firewall, HTTPS;
  • India IT Act, Cyber Law, Cyber Crimes, IPR issues, hacking.
  • Introduction To Web services: WWW, HyperText Markup Language (HTML), Extensible Markup Language (XML); Hyper Text Transfer Protocol (HTTP); Domain Names; URL; Website, Web browser, Web Servers; Web Hosting, Web Scripting – Client-side (VB Script, JavaScript, PHP) and Server-side (ASP, JSP, PHP), Web 2.0 (for social networking)
  • E-commerce payment transactions using online banking, mobile banking, payment apps, and services.

CBSE Syllabus For Class 12 Computer Science Unit III: Database Management

  • Database Concepts: Introduction to database concepts and 
  • Relational data model: Concept of the domain, relation, tuple, attribute, degree, cardinality, key, primary key, candidate key, alternate key, and foreign key;
  • Structured Query Language:
  • General Concepts: Advantages of using SQL, Data Definition Language, and Data Manipulation Language;
  • Data Types: number / decimal, character / varchar / varchar2, date;
  • SQL commands: CREATE TABLE, DROP TABLE, ALTER
  • TABLE, UPDATE ….SET , INSERT, DELETE; SELECT,
  • DISTINCT, FROM, WHERE, IN, BETWEEN, LIKE, NULL / IS NULL, ORDER BY, GROUP BY, HAVING;
  • SQL functions: SUM ( ), AVG ( ), COUNT ( ), MAX ( ) and MIN ( );
  • Joins: equijoin and natural join
  • The interface of Python with an SQL database
  • Connecting SQL with Python
  • Creating Database connectivity Applications
  • Performing Insert, Update, Delete queries
  • Display data by using fetchone(),fetchall(),rowcount

CBSE Syllabus For Class 12 Computer Science Practicals

Python Programming

  • Recursively find the factorial of a natural number.
  • Write a recursive code to find the sum of all elements of a list.
  • Write a recursive code to compute the nth Fibonacci number.
  • Read a text file line by line and display each word separated by a #.
  • Read a text file and display the number of vowels/ consonants/ uppercase/ lowercase characters in the file.
  • Create a binary file with a name and roll number. Search for a given roll number and display the name, if not found display the appropriate message.
  • Create a binary file with roll numbers, names, and marks. Input a roll number and update the marks.
  • Remove all the lines that contain the character `a’ in a file and write it to another file.
  • Write a random number generator that generates random numbers between 1 and 6 (simulates a dice).
  • Write a Python program to implement a stack and queue using a list data-structure.
  • Take a sample of ten phishing e-mails (or any text file) and find the most commonly occurring word(s)
 Database Management
  • Create a student table and insert data. Implement the following SQL commands on the student table:
  • ALTER table to add new attributes / modify data type / drop attribute
  • UPDATE table to modify data
  • ORDER By to display data in ascending/descending order DELETE to remove tuple(s)
  • GROUP BY and find the min, max, sum, count, and average
  • A similar exercise may be framed for other cases.
  • Integrate SQL with Python by importing the MySQL module.

CBSE Syllabus For Class 12 Computer Science Project

The aim of the class project is to create something that is tangible and useful using Python / Python and SQL connectivity. This should be done in groups of two to three students and should be started by students at least 6 months before the submission deadline. The aim here is to find a real-world problem that is worthwhile to solve.

Students are encouraged to visit local businesses and ask them about the problems that they are facing. For example, if a business is finding it hard to create invoices for filing GST claims, then students can do a project that takes the raw data (list of transactions), groups the transactions by category, accounts for the GST tax rates, and creates invoices in the appropriate format.

Students can be extremely creative here. They can use a  wide variety of Python libraries to create user-friendly applications such as games, software for their school, software for their disabled fellow students, and mobile applications, Of course, to do some of these projects, some additional learning is required; this should be encouraged. Students should know how to teach themselves.

The students should be sensitized to avoid plagiarism and violations of copyright issues while working on projects. Teachers should take necessary measures for this.

Download Latest CBSE Syllabus for Class 12 Computer Science 2021

CBSE 12th Computer Science Old Syllabus

CBSE Class 12 Computer Science Deleted Syllabus 2020-21

Check out the detailed Computer Science Deleted Syllabus Class 12:

Unit I: Computational Thinking and Programming – 2

● Recursion – simple algorithms with recursion: print a message forever, the sum of the first n
natural numbers, factorial, Fibonacci numbers, recursion on arrays: binary search
● The idea of efficiency: performance measurement in terms of the number of operations.
● Data-structures: Lists as covered in Class XI, Stacks – Push, Pop using a list, Queues –
Insert, Delete using a list. (One of the data structures Stack or Queue. Note: While setting the
question paper a student will have an option between Stack and Queue.)

Unit II: Computer Networks

● Web Scripting Client-side (VB Script, JavaScript, PHP) and Server-side (ASP, JSP, PHP),
Web 2.0 (for social networking)
● E-commerce payment transactions using online banking, mobile banking, payment apps
and services.

Unit III: Database Management

CREATE TABLE, DROP TABLE, ALTER TABLE, UPDATE ….SET, INSERT, DELETE
1. Suggested Practical List: Python Programming
● Recursively find the factorial of a natural number
● Write a recursive code to find the sum of all elements of a list.
● Write a recursive code to compute the nth Fibonacci number

Download Deleted CBSE Syllabus For Class 12 Computer Science 2021

Other Important Links For CBSE Class 12 Computer Science

You should have the following study materials to boost your exam preparation for the Class 12 Computer Science exam. Click on the link to access the study materials.

Must Read: CBSE Class 12 Computer Science Exam Pattern

Here you can check the chapter-wise weightage for CBSE Class 12 Computer Science question Paper. 12th Computer Science Theory Exam Pattern

Unit No.

Unit Name

Theory Marks

Periods

Theory

Practical

 

I

Computational Thinking and Programming – 2

40

70

50

 

II

Computer Networks

10

15

 

III

Database Management

20

25

20

 

Total

70

110

70

12th Computer Science Practical Exam Pattern

S.

No.

Area

Marks

(Total=30)

1

Lab Test:

1.    Python      program      (60%      logic      +      20% documentation + 20% code quality)

2.    Small Python program that sends a SQL query to a database and displays the result. A stub

the program can be provided.

 

 

7

 

5

2

Report file: Minimum 20 Python programs. Out of this at least 4 programs should send SQL  commands to a database and retrieve the result

7

3

Project (that uses the concepts that have been learnt

in Class 11 and 12)

8

4

Viva voce

3

Download CBSE NCERT Textbook For Class 12 Computer Science PDF

Computer Science is an important subject in Class 12. The book has multiple benefits from class 12 exam preparation to exam preparation for various higher studies in the computer science field.

Here you can download NCERT Textbook for Class 12 Computer Science.

Download CBSE 12th Computer Science Text Books

We have covered the detailed guide on CBSE Syllabus For Class 12 Computer Science. Feel free to ask any questions related to CBSE Class 12 Computer Science in the comment section below.

FAQs- CBSE Syllabus For Class 12 Computer Science

Is there any change in the CBSE Syllabus For Class 12 Computer Science 2020-21?

Yes , CBSE has reduced the syllabus of CBSE class 12 CS syllabus by 30%.

How to download CBSE Syllabus For Class 12 Computer Science 2020-21 PDF?

Download CBSE Syllabus For Class 12 Computer Science 2020-21 PDF from the above article.

What is the marking scheme in CBSE 12th Computer Science 2020-21?

The marking scheme in CBSE 12th Computer Science 2020-21 is:
Theoretical Paper: 70 marks and
Practical/ Project Work: 30 Marks

How is the marking scheme distributed in the CBSE Syllabus For Class 12 Computer Science?

The marking scheme distributed in the CBSE Syllabus For Class 12 Computer Science:
I. Computational Thinking and Programming 2 – 40 Marks,
II. Computer Networks- 10 Marks and
III. Database Management -20 Marks

What is the best book for Class 12 Computer Science ?

Move fast with Computer Science with C++ by Sumita Arora is one of the best books for class 12.

Can I get the revised CBSE Syllabus For Class 12 Computer Science in PDF?

Yes. You can get the revised CBSE Syllabus For Class 12 Computer Science in PDF from the above article.

Is Computer Science with C++, by Reeta Sahoo also a good book for class 12?

Yes, Computer Science with C++, by Reeta Sahoo also a good book for class 12

How many marks of practical in class 12 computer science?

There is a maximum of 30 marks for practicals in class 12 computer science.

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