{"id":27589,"date":"2025-09-30T11:26:46","date_gmt":"2025-09-30T11:26:46","guid":{"rendered":"https:\/\/www.lawpreptutorial.com\/blog\/?page_id=27589"},"modified":"2026-04-01T17:20:15","modified_gmt":"2026-04-01T17:20:15","slug":"computer-science-syllabus","status":"publish","type":"page","link":"https:\/\/www.lawpreptutorial.com\/blog\/cbse\/class-12\/computer-science-syllabus\/","title":{"rendered":"Class 12 Computer Science Syllabus 2026-27: CBSE PDF"},"content":{"rendered":"\n

The CBSE Class 12th Computer Science syllabus is designed to prepare students with advanced knowledge of programming, data handling, networking, and database management. <\/p>\n\n\n\n

It emphasizes Python programming with recursion, file handling, and SQL integration, ensuring a balance between practical skills and theoretical concepts. The syllabus also covers computer networks, cyber safety, and ethical use of technology, making learners responsible digital citizens. <\/p>\n\n\n\n

The Class 12 CS syllabus 2026-27 by CBSE includes both theory and practical components, along with project work for real-world application. Let\u2019s go through the complete unit-wise syllabus, marks distribution, practicals, objectives, books, and preparation tips.<\/p>\n\n\n\n

Class 12 Computer Science Syllabus 2026\u201327: Overview<\/strong><\/h2>\n\n\n\n

Below is the list of chapters in class 12th computer science syllabus:<\/p>\n\n\n\n

Unit No.<\/strong><\/td>Unit Name<\/strong><\/td>Marks<\/strong><\/td><\/tr>
1<\/td>Computational Thinking and Programming \u2013 2<\/td>40<\/td><\/tr>
2<\/td>Computer Networks<\/td>10<\/td><\/tr>
3<\/td>Database Management<\/td>20<\/td><\/tr>
\u2014<\/td>Theory Total<\/td>70<\/td><\/tr>
4<\/td>Practical (Lab Work, Project, Viva, File)<\/td>30<\/td><\/tr>
\u2014<\/td>Grand Total<\/td>100<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Download Class 12 Computer Science Syllabus PDF<\/strong><\/h2>\n\n\n\n

Download the official Class 12th Computer Science Syllabus 2026-27 PDF and keep it handy for quick revision and reference.<\/p>\n\n\n\n

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Download Full Syllabus PDF<\/strong><\/a><\/div>\n<\/div>\n\n\n\n

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Class 12th Computer Science Syllabus 2026-27<\/strong><\/h2>\n\n\n\n

Let\u2019s go through the class 12 CS syllabus in detail:<\/p>\n\n\n\n

Unit 1: Computational Thinking and Programming \u2013 2<\/strong><\/h3>\n\n\n\n

This unit in CBSE class 12th CS syllabus focuses on advanced programming concepts in Python, building on the foundation laid in Class 11. Students revise previous topics and then dive deeper into user-defined functions, parameters, and scope of variables. <\/p>\n\n\n\n

Exception handling is introduced to make programs more robust. File handling covers text, binary, and CSV files with practical applications. The unit also introduces data structures like stacks, enabling students to implement push and pop operations using lists. <\/p>\n\n\n\n

Topics<\/strong><\/td>Details<\/strong><\/td><\/tr>
Revision of Class XI Python<\/td>Quick recap of Python basics \u2013 data types, operators, conditionals, loops, strings, lists, tuples, and dictionaries.<\/td><\/tr>
Functions in Python<\/td>Built-in, module-based, and user-defined functions; arguments, parameters, default and positional parameters; return values; flow of execution; local and global variables.<\/td><\/tr>
Exception Handling<\/td>Introduction to exceptions; handling errors using try, except, finally blocks for robust coding.<\/td><\/tr>
File Handling \u2013 Basics<\/td>Introduction to files, absolute vs relative paths, types of files (text, binary, CSV).<\/td><\/tr>
Text Files<\/td>File operations (r, r+, w, w+, a, a+ modes); with clause; read(), readline(), readlines(), write(), writelines(); seek() and tell(); manipulation of text data.<\/td><\/tr>
Binary Files<\/td>File modes (rb, rb+, wb, wb+, ab, ab+); pickle module; dump() and load(); reading, writing, searching, appending, updating binary files.<\/td><\/tr>
CSV Files<\/td>Using csv module; reading and writing with writer(), writerow(), writerows(), and reader().<\/td><\/tr>
Data Structure \u2013 Stack<\/td>Concept of stack, push and pop operations, and implementation of stack using Python lists.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Unit 2: Computer Networks<\/strong><\/h3>\n\n\n\n

This unit in the CBSE class 12th computer science syllabus provides a clear understanding of how computer systems communicate and share information. Students learn about the evolution of networks, data communication concepts, and transmission media. It also covers network devices, types, and topologies. <\/p>\n\n\n\n

Common internet protocols like HTTP, TCP\/IP, and SMTP are introduced, along with web technologies such as HTML, XML, domain names, and web hosting. By mastering these concepts, students develop a strong foundation in networking, which is essential for higher studies in IT and real-world applications.<\/p>\n\n\n\n

Topics<\/strong><\/td>Details<\/strong><\/td><\/tr>
Evolution of Networking<\/td>Introduction to networks, ARPANET, NSFNET, and the rise of the Internet.<\/td><\/tr>
Data Communication<\/td>Components: sender, receiver, message, medium, protocol; bandwidth and data transfer rate; IP addressing; switching (circuit and packet).<\/td><\/tr>
Transmission Media<\/td>Wired: Twisted pair, Co-axial, Fiber optic.Wireless: Radio waves, Microwaves, Infrared.<\/td><\/tr>
Network Devices<\/td>Modem, Ethernet card, RJ45, Repeater, Hub, Switch, Router, Gateway, Wi-Fi card.<\/td><\/tr>
Network Types & Topologies<\/td>Types: PAN, LAN, MAN, WAN.Topologies: Bus, Star, Tree.<\/td><\/tr>
Network Protocols<\/td>HTTP, FTP, PPP, SMTP, TCP\/IP, POP3, HTTPS, TELNET, VoIP.<\/td><\/tr>
Web Services<\/td>WWW, HTML, XML, domain names, URLs, browsers, servers, and web hosting.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Unit 3: Database Management<\/strong><\/h3>\n\n\n\n

The third unit in class 12th computer science syllabus introduces students to database concepts and relational models used in real-world applications. It explains tables, attributes, tuples, domains, and keys. <\/p>\n\n\n\n

A strong focus is placed on SQL (Structured Query Language), covering both Data Definition and Data Manipulation commands such as CREATE, SELECT, UPDATE, DELETE, and JOIN. <\/p>\n\n\n\n

Students also learn constraints, aggregate functions, and grouping clauses. The unit concludes with Python-SQL connectivity, enabling students to integrate databases into Python applications for dynamic data management.<\/p>\n\n\n\n

Topics<\/strong><\/td>Details<\/strong><\/td><\/tr>
Database Concepts<\/td>Introduction to databases, need for data management systems.<\/td><\/tr>
Relational Data Model<\/td>Relation, attribute, tuple, domain, degree, cardinality, and types of keys (candidate, primary, alternate, foreign).<\/td><\/tr>
SQL \u2013 Basics<\/td>Introduction, DDL & DML; data types (char, varchar, int, float, date); constraints (not null, unique, primary key).<\/td><\/tr>
SQL \u2013 Database Operations<\/td>CREATE, USE, SHOW, DROP commands for databases and tables; DESCRIBE, ALTER (add\/remove attribute, key).<\/td><\/tr>
SQL \u2013 Data Operations<\/td>INSERT, DELETE, SELECT, UPDATE; operators (mathematical, relational, logical); aliasing, DISTINCT, WHERE, IN, BETWEEN, ORDER BY, LIKE, NULL handling.<\/td><\/tr>
SQL \u2013 Aggregates & Joins<\/td>Aggregate functions (MAX, MIN, AVG, SUM, COUNT); GROUP BY, HAVING; joins (Cartesian, equi-join, natural join).<\/td><\/tr>
Python-SQL Connectivity<\/td>Connecting SQL with Python using connect(), cursor(), execute(), commit(), fetchone(), fetchall(), rowcount; performing insert, update, delete queries.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

More Important Resources for CBSE Exam<\/strong>:<\/p>\n\n\n\n

Class 11th Hornbill Syllabus<\/strong><\/a><\/td>CBSE Class 11th Commerce Subjects<\/a><\/strong><\/td><\/tr>
CBSE Full Form<\/a><\/strong><\/td>All about CBSE Class 11th<\/a><\/strong><\/td><\/tr>
Class 11th Syllabus<\/a><\/strong><\/td>Class 12th Syllabus<\/a><\/strong><\/td><\/tr>
Class 11th Commerce Books<\/a><\/strong><\/td>CBSE Board: All details<\/strong><\/a><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Practical List for CBSE Class 12 Computer Science Syllabus<\/strong><\/h2>\n\n\n\n

Python Programming<\/strong><\/h3>\n\n\n\n

Practice Python programs<\/a>:<\/p>\n\n\n\n