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Computer Science: Important Concepts, Basic of Coding, Application

Last updated date: 18th May 2024
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What is Computer Science?

The study of computers and computing, encompassing their conceptual and algorithmic principles, both hardware and software, and applications for data processing, is known as computer science. It includes the study of computer software, algorithms and research of data structures, networking, and the creation of computer networks.

In this article, we will learn about what is computer science and a brief idea of the syllabus covered in class 3 to class 12. Now that we have understood what computer science is and have a brief idea about the topics it encompasses, let us look at topics that are covered in the syllabus of computer science for kids till class 12.

Syllabus of Computer Science for Class 3 to 5

As kids get promoted to class 3 teaching and introducing them to computer science is a good option. This will not only help students to learn about this rapidly developing technology but will also help in forming a base for understanding the subject in higher grades.

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Let us look at some of the topics that are covered in classes 3 to 5.

  • What is a computer?

  • History and development

  • Parts of computer

  • Input and output device

  • Hardware and software

  • Types of Software 

  • Applications of software

  • The keyboard

  • Understanding windows

  • Commands 

  • MS Paint

  • Ms Word

  • MS PowerPoint

Key Points At A Glance

Let us look at some of the key glances.

  • Computer science is an electronic device, that takes input and delivers output.

  • Hardware and software are two main components of a computer.

  • Hardware describes the actual, observable parts of the system, such as the display, CPU, keyboard, and mouse.

  • Software refers to a series of instructions that allow the hardware to carry out a certain set of activities.

  • Both the hardware and the software are necessary for the hardware to operate effectively and for tasks to be completed.

  • An instruction to a computer programme to carry out a certain task is known as a command. It can be sent using a command-line interface.

Syllabus of Computer Science for Class 6 to 8

Mentioned below is the brief overview of the topics that are introduced and tight in classes 6 to 8. Students in classes 6 to 8 are taught the following topics in computer science:

  • Fundamentals of Computers

  • Word processing

  • Introduction to spreadsheets 

  • Features of PowerPoint 

  • Working with spreadsheets

  • HTML 

  • Introduction and use of the Internet

  • Algorithms

  • Flowcharts

  • E-commerce and E-greetings

  • Downloading and uploading

Key Points At A Glance

Let us look at some of the key glances.

  • The coding that organises a web page's content is called HTML (HyperText Markup Language).

  • Content may be organised using paragraphs, a list of bulleted points, graphics, and data tables, among other options.

  • Word processing is the process of creating a document on a computer using a text-editing programme called a word processor.

  • A computer file that contains data organised in a grid's rows and columns and allows for manipulation and calculation.

  • The World Wide Web is a collection of many websites that you may browse online. It contains related content, images, and other materials that come together to form a website.

  • A programme known as a web browser can be used to access and view webpages once you are connected to the Internet.

Syllabus of Computer Science for Class 9 and 10

In this section, we will discuss the complete classwise syllabus of computer science in classes 9 and 10. The classes 9 and 10 syllabi is given according to the latest CBSE guidelines.

Topics Covered in Class 9

Let us first discuss the syllabus of computer science in class 9. The topics are given below encomapsses the complete syllabus of class 9.

Basics of Information Technology

  • Computer Systems

  • Memory

  • Storage devices

  • Types of Software

  • Computer networking

  • Multimedia


  •  Safely browsing the web and using social networks

  •  Safely accessing websites

Office Tools

  •  Introduction to a word processor

  •  Edit and format text

  •  Presentation tool

  •  Edit and format a slide

  •  Spreadsheets

  •  Working with a spreadsheet

  • Use simple statistical functions

Lab Exercises 

This includes practicals.

Topics Covered in Class 10 Computer Science

Now that we have seen the syllabus of class 9 let us look at the syllabus of class 10. The following topics cover the entire syllabus of class 10.


  •  Internet

  •  Services available on the internet

  •  Web services

  •  Mobile technologies


  •  Introduction to web page designing using HTML

  •  HTML tags

  •  HTML Form

  •  Links

  • Cascading style sheets


  •  Netiquettes.

  •  Software licenses and the open-source software movement.

  •  Intellectual property rights, plagiarism and digital property rights.

  •  Freedom of information and the digital divide.

  • E-commerce

Lab Exercises 

This includes practicals.

Syllabus of Computer Science for Class 11 and 12

Mentioned below is the brief about the topics covered in the syllabus of classes 11 and 12 for computer science on the CBSE board.

Topics Covered in Class 11

The topics and subtopics mentioned below encompass all the major concepts covered in class 11.

Computer Systems and Organisation

  •  Basic Computer Organisation

  •  Types of software

  •  Operating system (OS)

  •  Boolean logic

  •  Number system

  • Encoding schemes

Computational Thinking and Programming – 1

  • Introduction to problem-solving

  • Familiarization with the basics of Python programming

  • Knowledge of data types

  • Operators

  • Expressions, statement, type conversion & input/output

  • Errors

  • Strings

  • Lists

  • Tuples

  • Python Model

Society, Law and Ethics

  •  Digital Footprints

  •  Digital society and Netizens

  •  Data protection

  •  Cyber-crime

  •  Cyber safety

  •  Safely accessing websites

  •  E-waste management

  •  Indian Information Technology Act (IT Act)

Topics Covered in Class 12

The topics and subtopics mentioned below encompass all the major concepts covered in class 12.

Computational Thinking and Programming – 2

  • Revision of Python topics covered in Class XI.

  • Functions

  • Text file

  • Binary file

  • CSV file

  • Data Structure

Computer Networks

  •  Evolution of networking

  •  Data communication terminologies

  •  Transmission media

  •  Network devices

  •  Network topologies and Network types

  •  Network protocol

  •  Introduction to web services

Database Management

  • Database concepts

  • Relational data model

  • Structured Query Language

  • The interface of python with an SQL database

Applications of Computer Science

The importance and the extent to which we are dependent on computers can not be undermined. In almost every field of occupation as well as day-to-day life the applications of computer science are implied. 


The e-commerce sector, as the name suggests, is completely dependent on its use and application. It is also important to note that these sectors developed solely because of the evolution of computer science. The effective application of data assessment will help e-commerce businesses increase sales, profits, and losses or even control customers into making purchases by observing their behaviour.

Finance & Banking

It is one of the most prominent and oldest sectors that uses the help of computer science for better performance growth and evolution. Also, in this modern time, we are forwarding toward a digital transaction-based society. For example, a branch of computer science named data sciences helps in threat and fraud control. Threat and fraud control uses the transactional data that banks have on hand. Data science has improved client privacy management as a result of its adoption.


Computer science mainly helps in the research in the field of bioinformatics, nanotechnology and data sciences branches. Hence, with the help of computer science, most modern research in the field of medicine is facilitated. 


The extraordinary capacity to derive insights into organising and managing transportation networks is the use of data science and computer science. The insights from this collected data are crucial for gaining a competitive edge, enhancing provider dependability, and reducing risks.

Why Should You Learn Computer Science?

As we have already seen the applications of computer science in our day-to-day life let us look at some reasons why you must learn computer science.

  • Learning Computer Science can present excellent career prospects for kids.

  • Learning Computer Science can improve the kids' capacity for critical thought and problem-solving opportunities.

  • Computer science has critical implications for our research and development in every field.

  • Knowledge of computer science can help and understanding is a lot of fun. One can learn programming and code for different prospects. 

  • Early exposure to learning Computer Science can benefit your child as they get older. When submitting applications to prestigious universities or prestigious employment, he or she would come across as a more viable prospect.

Best Resources for Learning Computer Science

Talking about resources, learning computer science is made easy by the abundance of both online and offline materials. Opting for online materials are the most preferable in the current times. Vedantu’s computer science tuition for classes 11 and 12 is one of the best options for the best online tutor for their children.

There are also many books on the market that you can use as resources. Additionally, there are several benefits to making your children learn computer science. So, in order to foster greater creativity, select the greatest resource quickly and start learning.

This was a complete discussion on what is computer science, along with its development branches and benefits of learning computer science. We have also learnt about the applications of computer science in some of the major sectors. We hope to have helped you understand the concept and scope of computer science a little better. 

FAQs on Computer Science: Important Concepts, Basic of Coding, Application

1. What are some of the mainstream careers for computer science?

The following are some of the major engineering courses for studying computer science.

  • Information Technology

  • Computer Engineering

  • Software Engineering

  • Computer Science and Engineering

  • Information System Engineering

2 . What is computer science?

The study of computers, computing, and both their theoretical and applied uses is known as computer science. Numerous tasks, such as creating algorithms, creating software and hardware, and developing artificial intelligence, are performed using the concepts of mathematics, engineering, and logic in computer science.

3. Name some of the prominent figures of computer science?

The most influential computer scientists include John McCarthy, the creator of the programming language LISP and a pioneer in artificial intelligence, Alan Turing, the World War II codebreaker known as the "father of modern computing," Tim Berners-Lee, the creator of the World Wide Web, and Grace Hopper, a key figure in the development of early computers like the UNIVAC I and the compiler for computer languages.

4. What are some of the applications of computer science?

Computer science has applications in almost every field. Some of the prominent fields include e-commerce, research and development, education, finance and banking, transport and healthcare. 

5. Which subjects form the basis of computer science?

Mathematics, electrical engineering, and physics are the core subjects that form the basis of computer science.