CBSE 2025 Computer Science Syllabus for Class 12: CBSE (Central Board of Secondary Education) offers multiple elective subjects to choose from. Students adopt the subjects as per their understanding, interest, and future planning. The list of all these subjects can be found under the CBSE Curriculum Academic Elective (Group A) tab. Once the elective is selected in Class 11, it cannot be changed in Class 12. Thus, students should think about and consult their teachers and parents before selecting the subjects. One of the most common academic electives chosen by students in Class 11 is Computer Science. CS is a new-gen subject that is an addition to the technology-driven minds of students. It guides the students through the basics and takes them to the level where they understand the coding and other programming of computers and software.
CBSE has released the 2024–25 Class 12 CS syllabus for the 2025 board exams. This syllabus can be downloaded from the official website of CBSE, cbseacademic.nic.in. The same syllabus can also be downloaded here in PDF format. Scroll down to download and check the CBSE Class 12 Computer Science syllabus 2024–25, which includes course structure, course content, and practicals that need to be performed for the 2025 board exams.
CBSE Class 12 Computer Science Course Structure 2024-2025
Before knowing about the CBSE Class 12 CS syllabus 2024-25 it is important to know the prerequisites. Students entering Class 12 must be aware of the topics studied in Class 11 as the Class 12 syllabus is an extension of the previous standard’s knowledge. From this Class 12 Computer Science syllabus, students are expected to learn to apply the concepts of function, file handling, use of basic data structures and computer networks, etc. To know the unit-wise distribution of marks check the table below:
|
Unit No. |
Unit Name |
Marks | Periods | |
| Theory | Practical | |||
|
1 | Computational Thinking and Programming – 2 |
40 |
70 |
50 |
| 2 | Computer Networks | 10 | 15 | … |
| 3 | Database Management | 20 | 25 | 20 |
|
| Total | 70 | 110 | 70 |
CBSE Class 12 Computer Science Course Content 2024-25
Now that you are aware of the units and their weightage, it is time to check the unit-wise syllabus for Computer Science Syllabus Class 12, 2025. Refer to this table to get the complete information chapter-wise.
| Unit wise Syllabus |
| Unit 1: Computational Thinking and Programming – 2 ●Revision of Python topics covered in Class XI. ●Functions: types of function (built-in functions, functions defined in module, user defined functions), creating user defined function, arguments and parameters, default parameters, positional parameters, function returning value(s), flow of execution, scope of a variable (global scope, local scope) ●Exception Handling: Introduction, handling exceptions using try-except-finally blocks ●Introduction to files, types of files (Text file, Binary file, CSV file), relative and absolute paths ●Text file: opening a text file, text file open modes (r, r+, w, w+, a, a+), closing a text file, opening a file using with clause, writing/appending data to a text file using write() and writelines(), reading from a text file using read(), readline() and readlines(), seek and tell methods, manipulation of data in a text file ●Binary file: basic operations on a binary file: open using file open modes (rb, rb+, wb, wb+, ab, ab+), close a binary file, import pickle module, dump() and load() method, read, write/create, search, append and update operations in a binary file ●CSV file: import csv module, open / close csv file, write into a csv file using writer(),writerow(),writerows() and read from a csv file using reader() ●Data Structure: Stack, operations on stack (push & pop), implementation of stack using list. |
| Unit 2: Computer Networks ●Evolution of networking: introduction to computer networks, evolution of networking (ARPANET, NSFNET, INTERNET) ●Data communication terminologies: concept of communication, components of data communication (sender,receiver, message, communication media, protocols), measuring capacity of communication media (bandwidth, data transfer rate), IP address, switching techniques (Circuit switching, Packet switching) ●Transmission media: Wired communication media (Twisted pair cable, Co-axial cable, Fiber-optic cable), Wireless media (Radio waves, Micro waves, Infrared waves) ●Network devices (Modem, Ethernet card, RJ45, Repeater, Hub, Switch, Router, Gateway, WIFI card) ●Network topologies and Network types: types of networks (PAN, LAN, MAN, WAN), networking topologies (Bus, Star, Tree) ●Network protocol: HTTP, FTP, PPP, SMTP, TCP/IP, POP3, HTTPS, TELNET, VoIP ●Introduction to web services: WWW, Hyper Text Markup Language (HTML), Extensible Markup Language (XML), domain names, URL, website, web browser, web servers, web hosting |
| Unit 3: Database Management ●Database concepts: introduction to database concepts and its need ●Relational data model: relation, attribute, tuple, domain, degree, cardinality, keys (candidate key, primary key, alternate key, foreign key) ●Structured Query Language: introduction, Data Definition Language and Data Manipulation Language, data type (char(n), varchar(n), int, float, date), constraints (not null, unique, primary key), create database, use database, show databases, drop database, show tables, create table, describe table, alter table (add and remove an attribute, add and remove primary key), drop table, insert, delete, select, operators (mathematical, relational and logical), aliasing, distinct clause, where clause, in, between, order by, meaning of null, is null, is not null, like, update command, delete command, aggregate functions (max, min, avg, sum, count), group by, having clause, joins: cartesian product on two tables, equi-join and natural join ●Interface of python with an SQL database: connecting SQL with Python, performing insert, update, delete queries using cursor, display data by using connect(), cursor(), execute(), commit(), fetchone(), fetchall(), rowcount, creating database connectivity applications, use of %s format specifier or format() to perform queries |
CBSE Class 12 Computer Science Practical Syllabus 2024-25
The practical part of Computer Science is very important from the applying perspective. Students must be able to apply the theoretical understanding practically. There has been a list of practicals designed based on the theory syllabus of Computer Science that need to be performed in the 2024-25 academic year. Check the Class 12 CS practical syllabus 2025 below:
| S.No |
Unit Name |
Marks (Total=30) |
|
1 | Lab Test: 1. Python program (60% logic + 20% documentation + 20% code quality) |
8 |
| 2. SQL queries (4 queries based on one or two tables) | 4 | |
|
2 | Report file: · Minimum 15 Python programs. · SQL Queries – Minimum 5 sets using one table / two tables. · Minimum 4 programs based on Python – SQL connectivity |
7 |
|
3 | Project (using concepts learnt in Classes 11 and 12) |
8 |
| 4 | Viva voce | 3 |
Suggested Practical List:
Python Programming
- 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.
- Remove all the lines that contain the character 'a' in a file and write it to another file.
- Create a binary file with name and roll number. Search for a given roll number and display the name, if not found display appropriate message.
- Create a binary file with roll number, name and marks. Input a roll number and update the marks.
- Write a random number generator that generates random numbers between 1 and 6 (simulates a dice).
- Write a Python program to implement a stack using list.
- Create a CSV file by entering user-id and password, read and search the password for given userid.
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
- RDER By to display data in ascending / descending order
- DELETE to remove tuple(s)
- GROUP BY and find the min, max, sum, count and average
Similar exercise may be framed for other cases.
Integrate SQL with Python by importing suitable module.
Suggested Reading Material
- NCERT Textbook for COMPUTER SCIENCE (Class XII)
- Support Materials on the CBSE website.
Download CBSE Class 12 Computer Science Syllabus 2024-25 PDF |
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