CBSE Class 12 Computer Science (Code 083) Latest Syllabus
Welcome to our dedicated page for CBSE Class 12 Computer Science (Code 083) syllabus 2025–26 updates. Students preparing for the CBSE Class 12 Computer Science board examination should clearly understand the latest syllabus released by CBSE. The syllabus provides a clear overview of the course structure, important units, practical work, and marking scheme for this academic session By referring to the official syllabus, students can easily identify the topics that need to be studied and prepare for the exam in a more organized and focused way.
Class 12 Computer Science (083) syllabus mainly includes important areas such as Python programming, data structures, database management using SQL, and computer networks. Understanding the syllabus at the beginning of the academic session helps students create a proper study plan and complete their preparation on time. It also helps teachers guide students effectively by focusing on the topics that are relevant for the CBSE board examination. Therefore, students are advised to download and follow the latest session-wise Computer Science syllabus to ensure accurate and effective exam preparation.
On this page, you can download the latest CBSE Class 12 Computer Science Code 083 Syllabus PDF and check the complete details of the course.
| Syllabus | Source | Download |
|---|---|---|
| CBSE Class 12 Computer Science Syllabus 2026-27 | CBSE | Available Soon |
| CBSE Class 12 Computer Science Syllabus 2025-26 | CBSE | PDF Download |
| CBSE Class 12 Computer Science Syllabus 2024-25 | CBSE | PDF Download |
| CBSE Class 12 Computer Science Syllabus 2023-24 | CBSE | PDF Download |
COMPUTER SCIENCE (SUBJECT CODE 083)
CLASS – XII (SESSION 2025-26)
Total Marks: 100 (Theory 70 Marks + Practical 30 Marks)
| Section / Unit / Unit Name | Marks |
|---|---|
| Unit 1: Computational Thinking and Programming – 2 | 40 |
| Unit 2: Computer Networks | 10 |
| Unit 3: Database Management | 20 |
| Practical | 30 |
| Total | 100 |
DETAILED CURRICULUM
Unit I: 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 II: 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 III: 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
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
- 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
- Similar exercise may be framed for other cases.
- Integrate SQL with Python by importing suitable module.
Frequently Asked Questions (FAQs)
1. What is the syllabus of Class 12 Computer Science Code 083 for 2025–26?
The Class 12 Computer Science (083) syllabus for session 2025–26 includes topics such as Python programming, data structures, database management using SQL, and computer networks along with practical work and project.
2. Where can I download the Class 12 Computer Science 083 syllabus PDF?
Students can download the official CBSE Class 12 Computer Science (083) syllabus PDF from the CBSE website or from educational platforms that provide updated syllabus downloads.
3. Is the Class 12 Computer Science syllabus the same every year?
No, CBSE may update or modify the syllabus occasionally. Therefore, students should always check the latest syllabus for the current academic session before starting their preparation.
4. Why is it important to follow the official CBSE syllabus?
Following the official syllabus helps students understand the exact topics, exam pattern, and marking scheme. It ensures that students study only the relevant content required for the board examination.
5. What are the main units in Class 12 Computer Science (083)?
The major units generally include Python programming, data structures, database management with SQL, computer networks, and practical/project work.
6. How does the syllabus help in board exam preparation?
The syllabus helps students plan their studies, identify important topics, and prepare systematically according to the CBSE exam pattern and weightage.
7. Does the Class 12 Computer Science exam include practical marks?
Yes, CBSE includes practical marks that usually consist of programming work, project work, and viva based on the syllabus.