- 15 Sections
- 90 Lessons
- 365 Days
Expand all sectionsCollapse all sections
- SECTION 1: Basics of ComputersSection 1: Basics of Computers introduces students to the fundamental concepts of computer systems and how they work. It covers the definition of a computer, characteristics (speed, accuracy, storage, diligence), and the basic components of a computer system such as Input Unit, Output Unit, Central Processing Unit (CPU), and Memory. Students learn about different types of computers (supercomputers, mainframes, microcomputers), hardware vs. software, and primary vs. secondary storage devices. The section also explains the IPO Cycle (Input → Process → Output) and introduces system software and application software. This foundation helps students understand how computers process data and prepares them for advanced topics like programming, data handling, and networking in later sections.6
- SECTION 2: Computer HardwareSection 2: Computer Hardware focuses on the physical components of a computer system that can be seen and touched. It introduces students to key hardware units such as the Input Devices (keyboard, mouse, scanner), Output Devices (monitor, printer, speakers), Processing Unit (CPU), and Storage Devices (hard disk, pen drive, memory card). The section explains the functions of each hardware component, how they work together, and the difference between primary and secondary memory. Students also learn about internal vs. external hardware and the importance of hardware in overall computer performance. This section builds practical understanding of how computers operate at the physical level, supporting further learning in software and system operations.6
- SECTION 3: Computer SoftwareSection 3: Computer Software introduces students to the programs and applications that make a computer functional. It explains the difference between Hardware and Software and highlights the two main types of software: System Software (Operating Systems, device drivers, utilities) and Application Software (Word processors, spreadsheets, web browsers). Students learn how software controls hardware, manages system resources, and helps users perform specific tasks. The section also covers examples of popular operating systems and common application programs. This foundational knowledge helps learners understand how computers execute instructions and supports future topics like programming and application development.6
- SECTION 4: Operating SystemSection 4: Operating System introduces the operating system (OS) as the most important system software that acts as an interface between the user and the computer hardware. It explains key functions of an OS such as process management, memory management, file management, and device management. Students learn about common operating systems, user interfaces (GUI and CLI), and basic OS utilities. The section highlights how the OS controls overall computer operations and enables application software to run smoothly. This knowledge helps students understand how computers function internally and prepares them for more advanced computing concepts.6
- SECTION 5: Word Processing (Office Tools)Section 5: Word Processing (Office Tools) introduces students to software used for creating, editing, formatting, and printing documents. It focuses on features of word processors such as text typing, formatting (fonts, styles, alignment), inserting images/tables, page setup, and spell check. Students become familiar with common word processing tools, document saving methods, and basic editing commands like cut, copy, and paste. The section also highlights practical uses such as preparing letters, reports, and school projects. This unit builds essential digital documentation skills needed for academic and professional work.6
- SECTION 6: Spreadsheet (Excel)Section 6: Spreadsheet (Excel) introduces students to spreadsheet software used for organizing, calculating, and analyzing data in tabular form. It explains the basic structure of a spreadsheet including rows, columns, cells, worksheets, and workbooks. Students learn how to enter and format data, use basic formulas and functions (like SUM and AVERAGE), and create simple charts for data representation. The section also covers cell referencing, sorting, and filtering of data. This unit helps students develop practical skills in data management and calculation, which are essential for academic projects, business tasks, and real-life problem-solving.6
- SECTION 7: Presentation SoftwareSection 7: Presentation Software introduces students to tools used for creating visual presentations to communicate ideas effectively. It covers the basics of slide-based software such as creating, editing, and organizing slides. Students learn to insert text, images, shapes, charts, audio, and video, apply themes and layouts, and use animations and slide transitions. The section also explains slideshow settings and presentation delivery techniques. This unit helps students build skills in visual communication, making it useful for school projects, seminars, and professional presentations.6
- SECTION 8: Internet and Web TechnologiesSection 8: Internet and Web Technologies introduces students to the fundamentals of the Internet and how web-based communication works. It explains concepts such as Internet services, web browsers, websites, web pages, and URLs. Students learn about common online services including email, search engines, cloud storage, and social platforms, along with basic web terminology like HTTP/HTTPS and domain names. The section also touches on safe and responsible internet usage. This unit builds awareness of how information is accessed, shared, and communicated online, forming a foundation for digital literacy and web-based learning.6
- SECTION 9: Cyber Safety and EthicsSection 9: Cyber Safety and Ethics educates students about responsible and secure use of the internet and digital technologies. It covers important topics such as online privacy, strong passwords, cyberbullying, phishing, malware, and identity theft. Students learn safe internet practices, digital etiquette, and the importance of respecting others online. The section also explains cyber laws, copyright rules, and ethical behavior while using digital content and social media platforms. This unit helps students become responsible digital citizens by promoting awareness, safety, and ethical conduct in the online world.6
- SECTION 10: Digital CommunicationSection 10: Digital Communication introduces students to the methods and tools used to exchange information electronically. It explains various forms of digital communication such as email, instant messaging, video conferencing, social media, and online collaboration platforms. Students learn the basics of composing emails, using attachments, maintaining communication etiquette, and understanding the advantages of digital communication like speed, cost-effectiveness, and global connectivity. The section also highlights safe and responsible communication practices online. This unit builds essential skills for effective communication in academic, professional, and everyday digital environments.6
- SECTION 11: Introduction to Programming ConceptsSection 11: Introduction to Programming Concepts introduces students to the fundamentals of coding and logical problem-solving. It explains what programming is, how computers follow instructions, and the role of programming languages. Students learn basic concepts such as algorithms, flowcharts, variables, data types, operators, and control structures (sequence, selection, iteration). The section may also include simple program examples to build logical thinking and computational skills. This unit lays the foundation for learning advanced programming languages and helps students develop structured thinking for real-world problem solving.6
- SECTION 12: HTML and Web DesigningSection 12: HTML and Web Designing introduces students to the basics of creating web pages using HTML (HyperText Markup Language). It explains the structure of an HTML document and the use of common tags for formatting text, inserting images, adding links, and creating lists and tables. Students learn how web pages are designed, displayed in web browsers, and organized into websites. The section also covers basic page layout and simple formatting techniques. This unit builds foundational skills in web development and helps students understand how content is created and presented on the internet.6
- SECTION 13: Computer NetworkingSection 13: Computer Networking introduces students to the concept of connecting multiple computers to share data and resources. It explains what a computer network is and highlights its advantages such as resource sharing, communication, and cost efficiency. Students learn about different types of networks like LAN (Local Area Network), MAN (Metropolitan Area Network), and WAN (Wide Area Network). The section also covers basic networking devices such as modem, router, hub, and switch, along with common networking terms like IP address and bandwidth. This unit builds foundational knowledge of how computers communicate and share information, preparing students for advanced networking and internet-related concepts.6
- SECTION 14: Data Representation & Number SystemSection 14: Data Representation & Number System introduces students to how data and instructions are represented inside a computer. It explains that computers understand data in binary form (0s and 1s) and covers different number systems such as Decimal, Binary, Octal, and Hexadecimal. Students learn basic conversions between number systems, data measurement units (bit, nibble, byte, kilobyte, etc.), and how text, numbers, and symbols are encoded using standard coding schemes. This section builds a strong foundation for understanding how computers store, process, and transmit digital data.6
- SECTION 15: Computer Security & Data ProtectionSection 15: Computer Security & Data Protection introduces students to the importance of safeguarding computers, data, and digital resources from unauthorized access and cyber threats. It explains common risks such as viruses, worms, trojans, ransomware, hacking, and data theft. Students learn protective measures including antivirus software, firewalls, strong passwords, data backup, encryption, and safe browsing practices. The section also highlights the significance of privacy, legal awareness, and responsible data handling. This unit builds awareness about protecting digital information and promotes safe, ethical use of computer systems in everyday life.6
Characteristics of Computers MCQs with Solutions
Characteristics of Computers MCQs with Solutions
Class: CBSE Class 9
Subject: Computer Science
Section: Section 1 – Basics of Computers
Topic: Characteristics of Computers MCQs with Answers & Explanations
Board: CBSE Board Examination
Subject: Computer Science
Section: Section 1 – Basics of Computers
Topic: Characteristics of Computers MCQs with Answers & Explanations
Board: CBSE Board Examination
1. The ability of a computer to work very fast is called:
a) Accuracy
b) Speed
c) Storage
d) Automation
b) Speed
c) Storage
d) Automation
Answer: b) Speed
Computers can process millions of instructions per second, making them extremely fast.
Computers can process millions of instructions per second, making them extremely fast.
2. Producing error-free results is known as:
a) Diligence
b) Accuracy
c) Automation
d) Versatility
b) Accuracy
c) Automation
d) Versatility
Answer: b) Accuracy
Computers give correct results if the input and program are correct.
Computers give correct results if the input and program are correct.
3. Working continuously without getting tired is called:
a) Speed
b) Diligence
c) Storage
d) Intelligence
b) Diligence
c) Storage
d) Intelligence
Answer: b) Diligence
Computers do not suffer from fatigue like humans.
Computers do not suffer from fatigue like humans.
4. Ability to perform different types of tasks is:
a) Automation
b) Versatility
c) Accuracy
d) Speed
b) Versatility
c) Accuracy
d) Speed
Answer: b) Versatility
Computers can be used for education, banking, design, entertainment, etc.
Computers can be used for education, banking, design, entertainment, etc.
5. Large amount of data storing capability is called:
a) Storage
b) Speed
c) Accuracy
d) Automation
b) Speed
c) Accuracy
d) Automation
Answer: a) Computers store vast data in memory devices.
6. Automatic working after instructions is:
a) Automation
b) Diligence
c) Storage
d) Versatility
b) Diligence
c) Storage
d) Versatility
Answer: a) Computers run automatically once programmed.
7. Computers cannot think because they lack:
a) Speed
b) Intelligence
c) Storage
d) Accuracy
b) Intelligence
c) Storage
d) Accuracy
Answer: b) Computers depend on human instructions.
8. Performing repetitive tasks efficiently shows:
a) Diligence
b) Automation
c) Speed
d) Storage
b) Automation
c) Speed
d) Storage
Answer: a) No boredom or tiredness.
9. Example of computer versatility:
a) Only typing
b) Only gaming
c) Banking & education
d) Only printing
b) Only gaming
c) Banking & education
d) Only printing
Answer: c) Computers serve multiple fields.
10. High reliability means:
a) Frequent errors
b) Consistent results
c) Slow speed
d) Low storage
b) Consistent results
c) Slow speed
d) Low storage
Answer: b) Computers produce dependable outputs.
11. Computer speed is measured in:
a) Hertz
b) Meter
c) Byte
d) Volt
b) Meter
c) Byte
d) Volt
Answer: a) Indicates processing cycles per second.
12. Accuracy depends on:
a) Correct input
b) Wrong program
c) Virus
d) Power cut
b) Wrong program
c) Virus
d) Power cut
Answer: a) Correct data ensures correct output.
13. Computers store data in:
a) Memory
b) CPU only
c) Keyboard
d) Monitor
b) CPU only
c) Keyboard
d) Monitor
Answer: a) Storage devices hold data.
14. Lack of emotions is a computer’s:
a) Limitation
b) Feature
c) Speed
d) Accuracy
b) Feature
c) Speed
d) Accuracy
Answer: a) Computers cannot feel or judge.
15. Automation requires:
a) Electricity only
b) Instructions
c) Printer
d) Scanner
b) Instructions
c) Printer
d) Scanner
Answer: b) Programs guide automatic work.
16. Which characteristic ensures no tiredness?
a) Speed
b) Diligence
c) Accuracy
d) Storage
b) Diligence
c) Accuracy
d) Storage
Answer: b) Continuous performance.
17. Computers are called versatile because they:
a) Store data
b) Perform many tasks
c) Print fast
d) Type text
b) Perform many tasks
c) Print fast
d) Type text
Answer: b) Multi-purpose usage.
18. Example of automation:
a) Manual typing
b) Auto calculations
c) Hand drawing
d) Reading book
b) Auto calculations
c) Hand drawing
d) Reading book
Answer: b) Spreadsheet formulas run automatically.
19. Reliability of computer means:
a) Same output every time
b) Slow work
c) Limited storage
d) Manual control
b) Slow work
c) Limited storage
d) Manual control
Answer: a) Consistent performance.
20. Which is NOT a characteristic of computers?
a) Intelligence
b) Speed
c) Accuracy
d) Storage
b) Speed
c) Accuracy
d) Storage
Answer: a) Computers lack natural intelligence.
Note: These MCQs are strictly based on the NCERT syllabus and are ideal for CBSE Class 9 Computer Science examination preparation.