Computer Virus – Meaning of Computer Virus | Types of Computer Virus | Causes of Computer Virus Primary 4/Basic 4 Term 2 Week 5 Computer Studies

 

INFORMATION TECHNOLOGY

COMPUTER STUDIES

SECOND TERM  

WEEK 5

PRIMARY 4

THEME – BASIC CONCEPTS OF INFORMATION TECHNOLOGY 

PREVIOUS LESSON – Add and Format Text Microsoft PowerPoint Primary 4/Basic 4 Term 2 Week 4 Information Technology/Computer Studies

 

TOPIC – COMPUTER VIRUS 

 

LEARNING AREA

1. Introduction

2. Meaning of Computer Virus

3. Types of Computer Virus

4. Causes of Computer Virus

5. Lesson Evaluation and Weekly Assessment (Test)

 

 

LEARNING OBJECTIVES 

By the end of the lesson, most pupils should have attained the following objectives –

1. explain the meaning of computer virus.

2. state types of computer virus.

3. list the causes of computer virus.

 

 

ENTRY BEHAVIOUR

The pupils can perform basic computer operations.

 

 

INSTRUCTIONAL MATERIALS

The teacher will teach the lesson with the aid of functional computer with/without virus.

 

 

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  

LESSON 1 – INTRODUCTION 

A computer is a device designed to work with information or data.

Computer information can be words, numbers, pictures, movies, or sounds.

When a computer is slow, frequently crashes, copying itself, etc. That means the computer is infected with virus.

 

 

MEANING OF COMPUTER VIRUS

A computer virus is a program designed to cause damage to a computer after gaining access.

A computer virus can duplicate your personal data.

The duplicate data spread and attach itself to a program or file.

Then, slow down a computer. ​​​​​​​

 

 

EFFECTS OF COMPUTER VIRUSES

A computer virus makes the computer to be –

1. Slow performance

2. Frequent crashes

3. Storage space shortage

4. Missing files

5. Browser homepage change

6. Disabled antivirus, etc.

 

 

LESSON 2 – TYPES OF COMPUTER VIRUS

1. Boot Sector Virus

2. Resident Virus

3. Direct Action Virus

4. Multipartite Virus

5. Macro Virus

6. File Infector Virus

 

 

THE EFFECTS OF EACH TYPE OF COMPUTER VIRUS 

BOOT SECTOR VIRUS 

• Boot sector virus is designed to overwrites the existing program or copies itself to another part of the disk.

 

RESIDENT VIRUS 

• Resident virus is hidden and stores within the computer memory.

• It affects any files and programs that run on the computer.

 

DIRECT ACTION VIRUS 

• Direct action virus is a type of file infector virus that attach itself to an .exe or .com file.

• It makes file inaccessible

 

MULTIPARTITE VIRUS 

• Multipartite virus is a virus that attacks infected computer.

• It exposed the computer to cyber threat.

 

MACRO VIRUS 

• Macro virus is written in macro language that is used for software applications, such as word processing programs.

• It damages documents or other computer software.

 

FILE INFECTOR VIRUS 

• File infector virus is type of computer virus that infects executable files.

• It causes permanent damage or make files unusable.

 

 

LESSON 3 – CAUSES OF COMPUTER VIRUSES

1. Inserting of unknown USB and other devices

2. Not updating software and antiviruses

3. Installing applications from unknown sources

4. Booting data from unknown CD’s

5. Visiting Malicious websites

6. File or data transfer from bluetooth

 

REVISION AND WEEKLY ASSESSMENT (TEST)

 

PRESENTATION

To deliver the lesson, the teacher adopts the following steps – he/she,

1. Revises the previous lesson based on the pupil’s related knowledge or experience.

Pupil’s Activities – Participate actively in lesson review.

2. Gets functional computers with and without virus.

3. Guides pupils in groups or pairs to perform basic computer operations on both computers.

4. Lets pupils figure out the performance of the two computer.

Pupil’s Activities – Operate the computer and describe their performance.

5. Uses the computers and pupil’s responses to introduce the lesson – computer virus.

Pupil’s Activities – Pay attention to the lesson introduction to understand the concept of the lesson.

6. Explains the meaning of computer virus.

Pupil’s Activities – Explain the meaning of computer virus.

7. Shows pupils some of the duplicate files or documents and discuss with them, the effects of computer virus on the computer.

Pupil’s Activities – Identify duplicate files or documents and discuss with them, the effects of computer virus on the computer.

8. Outlines different types of computer with their effects.

Pupil’s Activities – State different types of computer with their effects.

9. States the causes of computer viruses with appropriate illustrations.

Pupil’s Activities – Discuss the causes of computer viruses with appropriate illustrations.

10. Summarizes the lesson on the board.

Pupil’s Activities – Participate actively in lesson summary and write as instructed.

 

 

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

Computer Anti Virus – Meaning of Computer Virus | Types of Computer Anti – Virus | Causes of Computer Anti – Virus Primary 4/Basic 4 Term 2 Week 6 Computer Studies

 

LESSON EVALUATION 

Ask pupils to:

1. explain the meaning of computer virus.

2. state 4 types of computer virus and their effects.

3. list 4 causes of computer virus.

 

 

WORKBOOK

WEEKLY ASSESSMENT (TEST)

1. A computer is a device designed to work with _______.

A. technology

B. information

C. All of above

 

2. _______ is a program designed to cause damage to a computer after gaining access.

A. Coronavirus

B. HIV virus

C. Computer virus

 

3. A computer virus can _______ your personal data.

A. duplicate

B. delete

C. remove

 

4. How does computer virus duplicate your personal data?

 

5. The duplicate data spread and attach itself to a program or file.

A. True

B. False

C. A and B

 

6. Computer virus is a virus that infects the _______ while coronavirus infect the _______.

A. computer and human

B. human and computer

C. computer and printer

 

7. _______ is designed to overwrites the existing program or copies itself to another part of the disk.

A. Resident virus

B. Direct action virus

C. Boot sector virus

 

8. _______ is hidden and stores within the computer memory and affects any files and programs that run on the computer.

A. Resident virus

B. Direct action virus

C. Boot sector virus

 

9. _______ is a type of file infector virus that attach itself to an .exe or .com file and also makes file inaccessible.

A. Resident virus

B. Direct action virus

C. Boot sector virus

 

10. _______ is a virus that attacks infected computer and exposed the computer to cyber threat.

A. Macro virus

B. Resident virus

C. Multipartite

 

11. _______ is written in macro language that is used for software applications, such as word processing programs by causing damage to the documents or other computer software.

A. Macro virus

B. File infector virus

C. Multipartite

 

12. File infector virus is type of computer virus that infects executable files and causes permanent damage or make files unusable.

A. Macro virus

B. File infector virus

C. Multipartite

 

State 4 causes of computer virus.

13. ______________

14. ______________

15. ______________

16. ______________

 

List 4 effects of virus on a computer system.

17. ______________

18. ______________

19. ______________

20. ______________

 

ANSWER KEY

1. B. information

2. C. Computer virus

3. All options are correct.

4. accept similar and reasonable answer.

5. A. True

6. A. computer and human

7. C. Boot sector virus

8. A. Resident virus

9. B. Direct action virus

10. C. Multipartite 

11. A. Macro virus

12. B. File infector virus

13 – 20, accept similar and reasonable answer.