CBSE Class 9th Computer Application PDF

Boost your CBSE exam preparation with Easy Study Notes’ Class 9th Computer Application Notes, crafted to help students understand, memorize, and revise key concepts faster. These handwritten and chapter-wise organized notes simplify every topic from Computer System,Memory,Storage Device,Software and Computer Networking — making learning easy and effective for every Class 9th student.

Each note is carefully prepared as per the latest CBSE syllabus (2025–26), focusing on concept clarity, formulas, diagrams, and NCERT-based questions to ensure maximum marks in exams.

🌟 Key Features & Benefits

✅ Complete CBSE Class 9th Computer Application syllabus covered

✅ Handwritten & easy-to-understand format for visual learning

✅ Includes Computer System,Memory,Storage Devices and   Computer Networking chapters

✅ Concepts explained pointwise for quick revision

✅ NCERT questions, formulas, and diagrams included

✅ Exam-focused content prepared by experienced teachers

✅ Instant PDF download – study anytime, anywhere

✅ Created by Easy Study Notes, trusted by thousands of students

Each chapter includes key terms, solved examples, and visual illustrations to make complex topics simple and engaging.

Chapter-Wise Coverage (As Per Latest CBSE Syllabus)

UNIT-1: Basics of Information Technology

Computer Systems:

• characteristics of a computer
• components of a computer system 
• CPU 
• memory
• storage devices and I/O devices 

1. Memory: 

• primary (RAM and ROM) 
• secondary memory 

• Storage devices: 
• hard disk
• CD ROM
• DVD
• pen/flash drive
• memory stick 

1. I/O devices: 

• keyboard
• mouse
• monitor
• printer
• scanner
• web camera 
• Types of software: 
• system software (operating system, device drivers)
• application software including mobile applications 

Computer networking: 

• Type of networks: 
• PAN
• LAN
• MAN
• WAN
• wired/wireless communication, 
• Wi-Fi
• Bluetooth
• cloud computers

Unit 2 : Cyber-safety 

• Safely browsing the web and using social networks: identity protection
•  proper usage of passwords
• privacy
• confidentiality of information 
• cyber stalking 
• reporting cybercrimes

Malware: 

• Viruses
• adware 

Unit 3: Office tools

Introduction to a word processor: 

• create and save a document
• Edit and format text
• text style (B, I, U) 
• font type
• font size
• text colour
• alignment of text
• Format paragraphs with line and/or paragraph spacing
• Add headers and footers 
• numbering pages
• grammar and spell check utilities
• subscript and superscript
• insert symbols
• use print preview
• print a document
• Insert pictures
• change the page setting
• add bullets and numbering
• borders and shading
• insert tables – insert/delete rows and columns
• merge and split cells 
• Use auto-format
• track changes 
• review comments 
• use of drawing tools 
• shapes and mathematical symbols 

Presentation tool: 

• understand the concept of slide shows, 
• basic elements of a slide, 
• different types of slide layouts, 
• create and save a presentation, 
• and learn about the different views of a slide set – normal view, 
• slide sorter 
• view and handouts. 
• Edit and format a slide: 
• add titles, 
• subtitles, 
• text, 
• background
• watermark, 
• headers and footers, 
• slide numbers. 
• Insert pictures from files, 
• create animations, 
• add sound effects, 
• and rehearse timings. 

Spreadsheets: 

• concept of a worksheet and a workbook, 
• create and save a worksheet. 

•  Working with a spreadsheet: 
•   enter numbers, 
  • text, 
  • date/time, 
  • series using auto fill; 
  • edit and format a worksheet including changing the colour, size, font and alignment of text; 
  • insert and delete cells, rows and columns.
  • Enter a formula using the operators (+,-,*, /), 
  • refer to cells,
  • print a worksheet. 
  • Use simple statistical functions: 
  • SUM (), 
  • AVERAGE (), 
  • MAX (), 
  • MIN (), 
  • IF () 
  • (without compound statements); 
  • embed charts of various types: 
  • line, 
  • pie, 
  • scatter, 
  • bar and area in a worksheet.

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