Class 3 Computer Science Worksheet

Chapter 1: Computer – A Smart Machine

  • Uses of computers at home, school, and office
  • Parts of a computer
  • Computer vs human beings

Chapter 2: Components of a Computer

  • Input devices
  • Output devices
  • CPU and its functions
  • Storage devices

Chapter 3: Hardware and Software

  • Meaning of hardware
  • Meaning of software
  • Examples of hardware and software

Chapter 4: Input and Output Devices

  • Keyboard and mouse
  • Monitor and printer
  • Microphone and speakers

Chapter 5: Uses of Computer

  • Computer in education
  • Computer in hospitals
  • Computer in banks and shops

Chapter 6: Introduction to Keyboard

  • Alphabet keys
  • Number keys
  • Special keys (Enter, Spacebar, Backspace)

Chapter 7: Introduction to Mouse

  • Parts of a mouse
  • Mouse actions (click, double-click, drag)

Chapter 8: Computer Care and Safety

  • Do’s and don’ts of using a computer
  • Keeping the computer clean
  • Safe computer habits

Chapter 9: Introduction to Paint

  • Opening MS Paint
  • Drawing tools
  • Colouring and saving a drawing

Chapter 10: Introduction to Word Processing

  • Opening a word processor
  • Typing simple text
  • Saving and opening a file

Chapter 11: Storage Devices

  • Hard disk
  • Pen drive
  • CD and memory card

Chapter 12: Basics of Internet

  • What is the Internet
  • Uses of the Internet
  • Safe use of the Internet

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