1. Year 8 ICT Internet Security
Internet and Information Safety
Lesson on Backup

2. PLTS (Personal Learning and Thinking Skills):
Learning Objectives
Be aware of the risks involved when using a computer.
To know what third thing you should do to prevent a virus attack on your PC.
Keywords :
Backup
PLTS (Personal Learning and Thinking Skills):
To develop
Independent enquirers – by completing the AVP exercise and answering the questions.
Effective participators – by focussing on the task andcompleting it in the time given.
Creative learners – by reflecting on how many ways you can keep your files safe.

3. How to prevent a virus attack
Make sure that you have anti-virus software on your computer.
Get the anti-virus software to scan your hard disk.
If a virus is found, the software will either remove it or quarantine it.

4. Task 1: Keeping Security up-to-date (8 min)
On your computer, it is important to keep security up-to-date. You do this by setting your security settings.
Let’s have a play! Check how safe the system is:
Start  My Computer  (T:) Shared  ICT  ICT Year 8  Unit - Internet Safety AVP
Complete the All AVP Worksheet.doc
Use the Security Centre to answer the questions. We will review in 8 minutes.

5. How to prevent a virus attack 2 - Firewalls
A firewall examines all traffic between two networks to see if it meets certain criteria. A firewall filters both inbound and outbound traffic.
Anyone who is responsible for a private network that is connected to a public network needs firewall protection.
Furthermore, anyone who connects as a single computer to the Internet via modem should have personal firewall software.
Examples of firewalls: Norton, McAfee, AVG…

6. How to prevent a virus attack 3 - Backing Up
What is backing up?
Why should you do it?
What can you backup onto?
Do you, honestly backup?

7. Why is it important to backup? What can you backup onto?
Level 5+ File Sizes
Why is it important to backup?
What can you backup onto?
File Example
Size
Equivalent to
Word processed document
700 KB
An mp3 file
4000KB (4MB)
6 documents
A DVD video
4000MB (4GB)
1000 mp3’s

8. Device
Average Capacity
Typical Use
Floppy Disk
1.44MB
Home / Not used
Zip Disk
100MB
Home / University
CD-R
750MB
Home / Work
CD-RW
DVD-R
3.5GB
Movie Production / Backup
DVD-RW
USB Storage
8MB – 16GB
Flash Memory
Hard Disk Drive
2GB – 500GB
Magnetic Tape
4GB – 520GB
Work / Professionals
BD (Blue Ray DVD)
27GB
WOW!
HD-DVD
U15GB - 45GB
WOW!!
NEW: Holographic Storage
300GB
WOWEEE!
Coming in 3 years: Advanced Holographic Storage
1TB
250,000 mp3’s on one disk! (a quarter of a million songs)

9. Today’s Main Task: Fact Sheet Production
Create a 1 page fact sheet in a program of your choice:
LEVEL 3/4: Your fact sheet must tell me what a virus is, what a firewall is and what backing up is. Audience: Year 7
LEVEL 5: As Level 4, but you must also explain how you keep virus software up-to-date and what the dangers of not doing so are. Audience: Year 8
LEVEL 6: Create a report, explaining everything from today’s lesson in detail, as well as discussing what problems viruses cause.
ALL: Suitable graphics should be used. Save in your Internet folder.

10. Keywords
Virus: Program that interferes with the computer by deleting the system files. System files: Essential instructions that tell the computer how to work. Firewall: Program that protects your computer from uncontrolled access from the Internet. Back up: Security copy of the files or documents created and kept in the PC.

11. What should you do to keep your files safe from a virus attack?
Plenary
What should you do to keep your files safe from a virus attack?