Computer Studies - Junior Secondary 3 - Internet and computer virus

Internet and computer virus

Term: 1st Term

Week: 9

Class: Junior Secondary School 3

Age: 14 years

Duration: 40 minutes of 2 periods each

Date:

Subject:      Computer studies

Topic:-       Internet and Computer Virus

SPECIFIC OBJECTIVES: At the end of the lesson, pupils should be able to

  1. Mention the virus warning signs
  2. List anti-virus softwares
  3. Discuss ways to prevent computer viruses

INSTRUCTIONAL TECHNIQUES: Identification, explanation, questions and answers, demonstration, videos from source

INSTRUCTIONAL MATERIALS: Videos, loud speaker, textbook, pictures

INSTRUCTIONAL PROCEDURES

PERIOD 1-2

PRESENTATION

TEACHER’S ACTIVITY

STUDENT’S ACTIVITY

STEP 1

INTRODUCTION

The teacher revises the previous lesson on Internet and computer virus

Students pay attention

STEP 2

EXPLANATION

She mentions and explains the virus warning signs and lists some common examples of anti-virus softwares

Students pay attention and participates

STEP 3

DEMONSTRATION

She further discusses ways to prevent computer viruses

 

Students pay attention and participate

STEP 4

NOTE TAKING

The teacher writes a summarized note on the board

The students copy the note in their books

 

NOTE

INTERNET AND COMPUTER VIRUS

VIRUS WARNING SIGNS

The following are warning sign of virus:

  1. Applications that don’t work properly.
  2. Disks that can’t be accessed
  3. Printers not working correctly
  4. Pull-down menus are distorted
  5. File size changes for no apparent reason.
  6. Date last access does not match date of last use.
  7. An Increase in the number of files on the system when nothing has been added.
  8. Unprotected disk drive activity.
  9. Unusual error messages
  10. System slow down, freezes or crashes

 

VIRUS DETECTION (ANTI-VIRUS SOFTWARE)

A virus could cause major damage to your computer. Viruses can delete files, overwrite hard drive sectors, replace a computer’s coding, and alter memory and

more. It is also necessary to pay attention to some terms used in anti-virus programs these days. These include:

  1. False positive
  2. On-demand scanning
  3. On-the-fly scanning: all the objects that are processed in any way (opened, closed, created, read from or written to etc) are being constantly checked for viruses. To detect a virus you will need to use anti-viruses software. These include:
  1. Avira
  2. Avast
  3. iii. Norton
  4. Kaspersky
  5. AVG
  6. McAfee Virus scan
  7. vii. Symantec
  8. viii. Eset Nod32 antivirus
  9. Bit defender etc.

 

WAYS TO PREVENT COMPUTER VIRUSES

  1. Install a reliable Anti-virus program
  2. Avoid suspicious websites
  3. Never open email attachment without scanning
  4. Install anti-spyware and anti-malware programs
  5. Set up automatic scans
  6. Watch your downloads
  7. Update your Anti-virus software
  8. Know what to look for on internet.
  9. Stay away from cracked software.
  10. Install a firewall.

 

EVALUATION:    1. Mention seven virus warning signs

  1. List five examples of common anti-virus softwares
  2. Discuss four ways to prevent computer virus

CLASSWORK: As in evaluation

CONCLUSION: The teacher commends the students positively