Output Devices: Meaning, Types and Functions of Output Devices Primary 4 (Basic 4) First Term Week 3 Information Technology (Computer Studies)

OUTPUT DEVICES: MEANING, TYPES FUNCTIONS OF OUTPUT DEVICES

INFORMATION TECHNOLOGY (COMPUTER STUDIES)

PRIMARY 4 – FIRST TERM – WEEK 3

THEME – BASIC CONCEPT OF IT

PREVIOUS LESSON – Storage Devices: Meaning, Types of Storage Devices and Their Uses Primary 4 (Basic 4) First Term Week 2 Information Technology (Computer Studies)

TOPIC – OUTPUT DEVICES 

LEARNING AREA

1. Introduction

2. Meaning, Types and Functions of Output Devices

3. Differences Between Output and Input Devices

4. Weekly Assessment: Test Questions and Answers/Assignment

5. Summary

LEARNING OBJECTIVES 

By the end of the lesson, pupils should be able to:

1. Explain the meaning of output devices.

2. Identify different types of output devices.

3. State the functions of output devices.

4. Differentiate between output devices and input devices.

5.vIdentify common output devices used with computers.

ENTRY BEHAVIOUR

Pupils have previously learned about storage devices, their types, and their uses. They learned that storage devices are used to save and keep data and information for future use.

This lesson builds on that knowledge by introducing output devices, which are used to display, print, or produce the processed information from a computer so that users can see, hear, or use the results.

INSTRUCTIONAL MATERIALS

The teacher will teach the lesson with the aid of:

1. Computer system

2. Monitor

3. Printer

4. Speakers

5. Headphones

6. Projector

7. Charts showing different output devices

8. Whiteboard and marker

METHOD OF TEACHING

Choose a suitable and appropriate methods for the lessons.

Note – Irrespective of choosing methods of teaching, always introduce an activities that will arouse pupil’s interest or lead them to the lessons. 

REFERENCE MATERIALS

1. Scheme of Work

2. 9 – Years Basic Education Curriculum

3. Course Book

4. All Relevant Material

5. Online Information

CONTENT OF THE LESSON

INTRODUCTION

When we use a computer, the information we type or process must be shown, printed, or played so that we can understand the result. The devices that help the computer present information to the user are called output devices.

In this lesson, pupils will learn the meaning, types, and functions of output devices and identify the common output devices used with computers.

LESSON 1 – MEANING OF OUTPUT DEVICES

Output devices are computer hardware that receive processed information from a computer and present it to the user in a form that can be seen, heard, or printed.

TYPES OF OUTPUT DEVICES AND THEIR FUNCTIONS

1. Monitor

A monitor is an output device that displays information, pictures, videos, and text on a screen.

Functions of Monitor:

• It displays text and images.

• It dhows videos and animations.

• It displays the results of computer work.

2. Printer

A printer is an output device that produces information on paper.

Functions of Printer:

• It prints documents.

• It prints pictures.

• It produces hard copies of computer work.

3. Speakers

Speakers are output devices that produce sound from the computer.

Functions of Speakers:

• They play music.

• They produce sound during videos and games.

• They help users listen to audio recordings.

4. Headphones

Headphones are output devices worn on the ears to listen to sound privately.

Functions of Headphones:

• They allow private listening.

• They play music and audio.

• They reduce disturbance to others.

5. Projector

A projector is an output device that displays computer images and videos on a large screen or wall.

Functions of Projector:

• It displays presentations.

• It shows videos to a large audience.

• It supports classroom teaching.

6. Plotter

A plotter is an output device used to produce large drawings and designs.

Functions of Plotter:

• It prints maps.

• It prints architectural drawings.

• It produces engineering designs.

LESSON 2 – GENERAL FUNCTIONS OF OUTPUT DEVICES

1. To display processed information.

2. To print documents and pictures.

3. To produce sound.

4. To display presentations.

5. To show videos and animations.

6. To help users view the results of computer processing.

7. To produce hard copies of information.

DIFFERENCE BETWEEN INPUT AND OUTPUT DEVICES

1. Input devices are used to enter data into the computer, while output devices are used to display or produce processed information from the computer. While, Input devices send data to the computer, while output devices receive information from the computer and present it to the user.

2. Examples of Input Devices: Keyboard, Mouse, Scanner, Microphone while Examples of Output Devices: Monitor, Printer, Speakers, Headphones, Projector, Plotter

LESSON 3 – WEEKLY ASSESSMENT: TEST QUESTIONS AND ANSWERS/ASSIGNMENT 

A. Multiple Choice Questions (5 Marks)

1. Output devices are used to ______.

A. enter data into the computer

B. display or produce processed information

C. store information only

D. protect the computer

2. Which of the following is an output device?

A. Keyboard

B. Mouse

C. Scanner

D. Monitor

3. Which output device produces hard copies of documents?

A. Printer

B. Monitor

C. Speaker

D. Headphone

4. Which output device is used to listen to sound privately?

A. Projector

B. Plotter

C. Headphone

D. Printer

5. Which output device displays images on a large screen?

A. Monitor

B. Projector

C. Printer

D. Mouse

B. Fill in the Blanks (5 Marks)

6. ______ are computer hardware that present processed information to the user.

7. A ______ displays text and pictures on a screen.

8. A ______ prints documents on paper.

9. ______ produce sound from the computer.

10. A ______ is used to display presentations on a large screen.

C. True or False (5 Marks)

11. A printer is an output device. ______

12. A keyboard is an output device. ______

13. Headphones produce sound. ______

14. A projector can be used in the classroom. ______

15. Speakers help users listen to sound privately. ______

D. Match Column A with Column B (5 Marks)

Column A – Column B

16. Monitor – A. Produces hard copies

17. Printer – B. Displays information on the screen

18. Speakers – C. Used for private listening

19. Projector – D. Produces sound

20. Headphones – E. Displays images on a large screen

ANSWER KEYS

1. B – Display or produce processed information

2. D – Monitor

3. A – Printer

4. C – Headphone

5. B – Projector

6. Output devices

7. Monitor

8. Printer

9. Speakers

10. Projector

11. True

12. False

13. False

14. True

15. False

16. B – Displays information on the screen

17. A – Produces hard copies

18. D – Produces sound

19. E – Displays images on a large screen

20. C – Used for private listening

SUMMARY

In this lesson, pupils learned that output devices are computer hardware used to present processed information from the computer to the user in a form that can be seen, heard, or printed.

They identified the common output devices, including:

• Monitor – Displays text, pictures, and videos on the screen.

• Printer – Produces hard copies of documents and pictures.

• Speakers – Produce sound from the computer.

• Headphones – Allow users to listen to sound privately.

• Projector – Displays computer images and presentations on a large screen.

• Plotter – Produces large drawings, maps, and engineering designs.

Pupils also learned the functions of output devices, such as displaying processed information, printing documents, producing sound, showing videos and presentations, and providing users with the results of computer processing.

Finally, they learned the difference between input devices and output devices:

• Input devices are used to enter data into the computer.

• Output devices are used to display or produce processed information from the computer.

PRESENTATION

To deliver the lesson, the teacher adopts the following steps:

Step 1: Introduction – The teacher displays a monitor, printer, speakers, headphones, projector, or pictures of these devices and asks pupils if they have seen or used any of them before.

Pupils’ Activities: Pupils identify the devices they know and mention where they have seen or used them.

Step 2: Meaning of Output Devices – The teacher explains that output devices are computer hardware that receive processed information from the computer and present it to the user.

Pupils’ Activities: Pupils explain the meaning of output devices in their own words.

Step 3: Types of Output Devices – The teacher introduces the common output devices:

• Monitor

• Printer

• Speakers

• Headphones

• Projector

• Plotter

The teacher displays each device or its picture and explains its function.

Pupils’ Activities: Pupils identify and name each output device correctly.

Step 4: Functions of Output Devices – The teacher explains the functions of each output device and demonstrates how they are used where possible.

Pupils’ Activities: Pupils state the functions of the output devices.

Step 5: Difference Between Input and Output Devices – The teacher explains that:

• Input devices are used to enter data into the computer.

• Output devices are used to display or produce processed information.

• Examples of both input and output devices are discussed.

Pupils’ Activities: Pupils differentiate between input and output devices.

Step 6: Group Activity – The teacher divides the class into four groups and assigns the following activities:

• Group 1: Identify and name different output devices displayed by the teacher.

• Group 2: Explain the functions of each output device.

• Group 3: Classify the displayed devices into input devices and output devices.

• Group 4: Demonstrate the correct use of common output devices such as the monitor, printer, speakers, or projector.

Each group presents its work before the class.

Pupils’ Activities: Pupils discuss, complete the assigned activities, and present their findings.

Step 7: Lesson Summary – The teacher reviews the meaning, types, and functions of output devices and the difference between input and output devices.

Pupils’ Activities: Pupils answer oral questions and summarise the lesson.

Step 8: Evaluation – The teacher asks oral and written questions to assess pupils’ understanding of output devices, their types, functions, and proper identification.

Pupils’ Activities: Pupils answer the evaluation questions and participate actively in the lesson.

CONCLUSION

To conclude the lesson for the week, the teacher revises the entire lesson and links it to the following week’s lesson.

NEXT LESSON

Microsoft PowerPoint: Meaning and How to Launch PowerPoint Primary 4 (Basic 4) First Term Week 4 Information Technology (Computer Studies)

LESSON EVALUATION 

Teacher asks pupils,

1. What are output devices?

2. Mention six output devices.

3. State the functions of the following output devices:

(a) Monitor

(b) Printer

(c) Speakers

(d) Headphones

(e) Projector

4. Which output device is used to:

(a) Print documents?

(b) Produce sound?

(c) Display information on a screen?

(d) Display presentations to a large audience?

5. Mention five general functions of output devices.

6. State three differences between input devices and output devices.

7. Give four examples of input devices and four examples of output devices.

8. Explain why a printer is an important output device.

9. Why are headphones useful when using a computer?

10. Identify the output devices available in your school or home and explain one function of each.