Lecture Notes on Computer Peripheral Devices

Introduction

• Instructor: Teacher Nick
• Topic: Computer Peripheral Devices
• Objectives:
  • Identify functions of input and output peripheral devices
  • Understand the importance of these devices in daily life
  • Enumerate different input and output devices

Review of Previous Lesson

• Definition of a computer: Electronic device that accepts, sorts, processes, and outputs data
• Basic parts of a computer:
  • Hardware: Physical elements
  • Software: Computer programs
• Types of computers discussed previously

Activity

• Preliminary activity: List external body parts
• Connection made between body parts and components of a computer system

Input Devices

• Definition: Devices that accept data and instructions from users or other systems
• Types of input devices:
  1. Keyboard
     • Used to input text characters and commands
  2. Direct Entry Devices
     • Do not require keyboard input
     • Categories:
       • Pointing Devices
         • Move the cursor on screen
         • Examples:
           • Mouse
             • Most common pointing device
             • Types of mice:
               • Optical Mouse
               • Wireless Mouse
               • Mechanical Mouse
               • Trackball Mouse
           • Touch Screen
             • Sensitive to touch, used in smartphones and tablets
           • Digitizer Tablet (Graphics Tablet)
             • Used for sketching or tracing images
       • Scanning Devices
         • Read text or illustrations and convert them to digital data
         • Examples:
           • Scanner
           • Barcode Reader
       • Voice Input Devices
         • Allow audio input for processing commands
         • Example: Microphone

Output Devices

• Definition: Hardware that displays or shows results after processing input data
• Examples:
  • Monitor
    • Displays information visually (text and graphics)
    • Types of monitors:
      • LED: Light Emitting Diode
      • LCD: Liquid Crystal Display
      • CRT: Cathode Ray Tube
  • LCD Projector
    • Displays images or data on screens
  • Speaker
    • Produces sound output
  • Printer
    • Prints text and images on paper
    • Types of printers:
      • Inkjet Printer
      • Laser Printer
      • LCD/LED Printer
      • Line Printer
      • Thermal Printer
      • Large Format Printer
      • 3D Printer

Activities

• Video clip on input and output hardware peripherals
• Questions for discussion after the video
• Drawing activity: Diagram of computer system with input and output devices labeled

Conclusion

• Importance of input and output devices for computer functionality
• Final thoughts on learning and passion for growing knowledge
• Upcoming topics and assignments

Closing

• Instructor: Teacher Nick
• Encouragement to develop a passion for learning
• Goodbye message