CBSE Class 12 Preparation Tips for Computer Science 2024-25

CBSE Class 12 Preparation Tips for Computer Science 2024-25

Upcoming Event

CBSE Class 12th Exam Date:17 Feb' 26 - 17 Feb' 26

Vishal kumarUpdated on 17 May 2025, 04:15 PM IST

CBSE Class 12 Preparation Tips for Computer Science- Class 12th is the crucial stage of your secondary education and a building block of your future career path. Based on the Class 12th board marks and scores, students select the relevant career courses further. Hence, students should put more effort and try to score well in the CBSE 12th board examination. Computer Science is one of those subjects that students prefer more often. The mentioned CBSE Class 12 preparation tips for computer science in this article will help you to score good marks in the final board examinations.

This Story also Contains

  1. CBSE Class 12 Computer Science Syllabus
  2. CBSE Class 12 Computer Science Unit-wise Weightage
  3. CBSE Class 12 Computer Science Practical Question Paper Design
  4. Reference Books for CBSE Class 12 Computer Science
  5. CBSE Class 12 Preparation Tips for Computer Science
  6. CBSE Class 12th Computer Science Tips & Tricks for Board Exam Day
CBSE Class 12 Preparation Tips for Computer Science 2024-25
CBSE Class 12 Computer Science Preparation Tips 2024-25

Computer Science taught in Class 11 and 12 forms the base for pursuing higher studies, especially for those who want to make a career in this field. Although it is a scoring subject, students often find it hard to grab good marks in the subject. The reason for the same can be a lack of information or a poor study plan. Considering the same, we have compiled some best CBSE Class 12 preparation tips for computer science in this article to help them to perform well in the examination.

Also, check: CBSE Class 12 Date Sheet

CBSE Class 12 Computer Science Syllabus

UnitTitleSubtopics
Unit 1Computational Thinking and Programming – 2

Revision of Python topics covered in Class XI. Functions: types of function (built-in functions, functions defined in a module, user-defined functions), creating a 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 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, search and append and delete 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(), readerow(). Data Structure: Stack, operations on stack (push & pop), implementation of stack using list.

Unit 2Computer 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, Microwaves, 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, SMTP, TCP/IP, POP3, HTTPS, TELNET, VoIP. Introduction to web services: WWW, Hypertext Markup Language (HTML), Extensible Markup Language (XML), domain names, URL, website, web browser, web servers, web hosting.

Unit 3Database Management

Database concepts: introduction to database concepts and their 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, use table, show table, select command, operators (mathematical, relational and logical), aliasing, distinct clause, where clause, in, between, order by, group by, null vs. 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.

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CBSE Class 12 Computer Science Unit-wise Weightage

Unit No.Unit NameMarks
1Computational Thinking and Programming – 240
2Computer Networks10
3Database Management20

Total70

CBSE Class 12 Computer Science Practical Question Paper Design

S. NoUnit NameMarks (Total = 30)
1Lab Test:
1. Python program (60% logic + 20% documentation + 20% code quality)
2. SQL queries (4 queries based on one or two tables)
12 (8+4)
2Report file:
  • Minimum 15 Python programs
  • SQL Queries – Minimum 5 sets using one table / two tables
  • Minimum 4 programs based on Python – SQL connectivity
7
3Project (using concepts learnt in Classes 11 and 12)8
4Viva voce3

Reference Books for CBSE Class 12 Computer Science

Book TitleAuthor(s)PublisherFeatures
Computer Science with PythonPreeti AroraSultan Chand

Comprehensive coverage of Python programming, database management, and networking concepts; includes ample examples and exercises.

Computer Science with PythonSumita AroraDhanpat Rai Publications

Detailed explanations of concepts with numerous solved and unsolved questions; widely recommended by educators and students.

All-in-One Computer Science with PythonNeetu GaikwadArihant Publications

All-in-one guide covering theory, practice questions, and sample papers; aligned with the latest CBSE syllabus.

Together with Computer Science with PythonRachna SagarRachna Sagar Publications

Provides chapter-wise summaries, practice questions, and previous years' papers; helpful for revision and practice.

Oswaal CBSE Question Bank Computer ScienceOswaal Editorial BoardOswaal Books

Contains chapter-wise and topic-wise questions, including previous years' board questions; includes mind maps and revision notes.

A Textbook of Computer Science with PythonV.K. Pandey, D.K. DeyAPC Publications

Covers theoretical concepts and practical applications; includes multiple-choice questions and programming exercises.

Essentials of Computer ScienceAsmita PublicationAsmita Publication

Focuses on fundamental concepts with clear explanations; includes practice questions for self-assessment.


Also, Check:

CBSE Class 12 Preparation Tips for Computer Science

Preparing for the CBSE 12th board examination correctly and effectively can fetch you the desired outcome. Most of the time, students commit some silly mistakes while preparing for the board examinations that lower their aggregate scores. Refer to the CBSE Class 12 Computer Science preparation tips given below:

1. Know the CBSE Class 12th Computer Science Syllabus

A student must go through the CBSE Class 12th syllabus for computer science before starting to prepare for the exam. The syllabus would also tell you the topics with a higher weightage of marks, which can not be skipped or avoided. It would also help the students in forming a proper study plan for the exam.

2. Exam Pattern and Types of Questions Asked

Once the student gets to know about the syllabus, they also get an idea about the CBSE Class 12 exam pattern, marking scheme, and type of questions being asked year-round. Knowing the same will help to set the priority of chapters during the CBSE Class 12 Preparation for Computer Science. Check some important points related to the exam pattern and marking scheme before moving ahead. Below are some quick CBSE class 12 preparation tips for the computer science paper-

  • Students should solve all the questions within the given time.

  • There will be no deduction of marks for providing an incorrect answer, hence, students should try to attempt all questions.

  • Highlight the important sections either by underlining or by using a different colour pen, other than Red.

3. Make CBSE Class 12 Time Table for Computer Science

After collecting all the details of the exam pattern, syllabus, and mark distribution, students have to divide their daily schedule in such a manner that they cover all the topics and chapters before December. Students should strictly follow their study schedule to cover the complete syllabus on time. It is necessary to prepare the CBSE 12th board syllabus before December, as most of the schools conduct the pre-board examination in December/January to check the performance of students. Hence, make a daily study schedule where you devote equal time to all five subjects. Additionally, give more time to tough topics and prepare them on a priority basis, as they consume more time in comparison to other topics.

4. Create Short Notes or Flashcards

Along with preparing a topic, students are advised to make handwritten short notes or flashcards of important facts. Writing these notes helps students to memorize the concept faster. Besides, these short notes make the revision process easier as students do not need to carry heavy books all the time.

5. Revise Important Facts Regularly

The human brain is very complex. It tends to forget things on the D-day. Hence, students should put extra effort into retaining all the information studied. It is advised to keep practising programming and coding regularly to get the hang of it. Short notes will help make your revision process faster. With the help of the same, students can revise the important sections on the go.

6. Solve CBSE 12th Computer Science Question Papers

Practicing previous year CBSE 12th question papers is a must to score good marks in computer science exams. Moreover, you get to know about the question trend. Solving a minimum of 5-6 questions of each type from previous CBSE 12th board papers helps in clearing all doubts. Students can take the help of their teachers to clear the concepts as well.

Also, read CBSE Class 12th Preparation Tips for English

CBSE Class 12th Computer Science Tips & Tricks for Board Exam Day

  • A student must utilize the initial 15 minutes for reading the question paper.
  • They must start by answering the questions they are confident about and write them precisely.
  • Try to write in bullet points and highlight the important points.
  • Make a rough sketch of the program first so as not to make mistakes while writing the final program.
  • Always keep the last 15 minutes for revision and rectifying any mistakes.
  • Do not stick to any one question for too long if you don’t know the answer.
  • Be specific and neat in your answers.

Also, Read:

Frequently Asked Questions (FAQs)

Q: How to study computer science class 12?
A:

Follow a good 12th computer science guide, complete the syllabus, revise it, solve sample and previous year papers as much as possible.

Q: How can I get full marks in Class 12 Computer Science?
A:

Solve and practise previous year sample papers. Get familiar with the latest syllabus and exam pattern and it will help students to get 100% marks in Computer Science.

Q: Is Computer Science a scoring subject?
A:

Computer Science is a scoring subject. Students who are strong with applications, coding and programming can score high marks in the subject. 

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Questions related to CBSE Class 12th

On Question asked by student community

Have a question related to CBSE Class 12th ?

Hello,

The date of 12 exam is depends on which board you belongs to . You should check the exact date of your exam by visiting the official website of your respective board.

Hope this information is useful to you.

Hello,

Class 12 biology questions papers 2023-2025 are available on cbseacademic.nic.in , and other educational website. You can download PDFs of questions papers with solution for practice. For state boards, visit the official board site or trusted education portal.

Hope this information is useful to you.

Hello Pruthvi,

Taking a drop year to reappear for the Karnataka Common Entrance Test (KCET) is a well-defined process. As a repeater, you are fully eligible to take the exam again to improve your score and secure a better rank for admissions.

The main procedure involves submitting a new application for the KCET through the official Karnataka Examinations Authority (KEA) website when registrations open for the next academic session. You must pay the required application fee and complete all formalities just like any other candidate. A significant advantage for you is that you do not need to retake your 12th board exams. Your previously secured board marks in the qualifying subjects will be used again. Your new KCET rank will be calculated by combining these existing board marks with your new score from the KCET exam. Therefore, your entire focus during this year should be on preparing thoroughly for the KCET to achieve a higher score.

For more details about the KCET Exam preparation, CLICK HERE.

I hope this answer helps you. If you have more queries, feel free to share your questions with us, and we will be happy to assist you.

Thank you, and I wish you all the best in your bright future.

Yes, you can switch from Science in Karnataka State Board to Commerce in CBSE for 12th. You will need a Transfer Certificate from your current school and meet the CBSE school’s admission requirements. Since you haven’t studied Commerce subjects like Accountancy, Economics, and Business Studies, you may need to catch up before or during 12th. Not all CBSE schools accept direct admission to 12th from another board, so some may ask you to join Class 11 first. Make sure to check the school’s rules and plan your subject preparation.



Hello

For the 12th CBSE Hindi Medium board exam, important questions usually come from core chapters like “Madhushala”, “Jhansi ki Rani”, and “Bharat ki Khoj”.
Questions often include essay writing, letter writing, and comprehension passages. Grammar topics like Tenses, Voice Change, and Direct-Indirect Speech are frequently asked.
Students should practice poetry questions on themes and meanings. Important questions also cover summary writing and translation from Hindi to English or vice versa.
Previous years’ question papers help identify commonly asked questions.
Focus on writing practice to improve handwriting and presentation. Time management during exams is key to answering all questions effectively.