What are Computers? C Use this tutorial alongside the numbers coded in your workbook and answer the related questions in each section. http://creativecommons.org/licenses/by-nc/4.0/

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Presentation transcript:

What are Computers? C Use this tutorial alongside the numbers coded in your workbook and answer the related questions in each section. http://creativecommons.org/licenses/by-nc/4.0/ What are computers adapted from Nikki Maddams

Computer Viruses` Index 21. Objectives and Outcomes 22. Keywords 23. What is a computer virus? 24. What does a virus do? 25. How are viruses spread? 26. Affected by email? 27. Can you carry a virus? 28. How can you get rid of a virus? 29. Why should you update? 30. How do you update? 31. Internet and Network attacks 33. What do you know?

Objectives and Outcomes Learning Objective: To understand a little bit about computer viruses and what precautions they need to take to avoid infection. Learning Outcomes: GOOD: To know how computer viruses are spread BETTER: To understand why it is important to update their anti-virus software at home on a regular basis BEST: To identify potentially dangerous applications and websites

Update ------ Backup ------ Virus scan ------ Anti virus Y W O R D S Update ------ Backup ------ Virus scan ------ Anti virus

What is a computer virus? A computer virus is a piece of software or programming code.

What does a virus do? Just like a biological virus, a computer virus makes copies of itself. Computer viruses don’t damage the computer, but they can damage your data and files.

How are viruses spread? They can be downloaded from some web pages. If a webpage is offering free games or ringtones to download and it seems too good to be true – it probably is. If you download the file, there might be a virus hidden inside it.

Affected by email? They can be caught from opening attachments or clicking on links in emails. If you get an email from someone you don’t know, don’t ever click on a link in the mail and don’t open any attachments.

Can you carry a virus? If someone has a virus on their computer and they save a file onto a floppy disk or USB stick, the virus might also be saved onto the media. If you borrow your friend’s USB stick and it has a virus on it, you could transfer it to your computer.

How can you get rid of a virus? 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.

Why should you update? Because new viruses are being written every single day, your anti-virus software soon gets out of date. It might not recognise new viruses or know what to do with them.

How do you update? You should update your anti-virus software at least once a week. This is free to do, just go to the software’s main website and download any patches

Internet and Network Attacks

Internet and Network Attacks Computer Virus Affects a computer negatively by altering the way the computer works Worm Copies itself repeatedly, using up resources and possibly shutting down the computer or network Trojan Horse A malicious program that hides within or looks like a legitimate program Rootkit Program that hides in a computer and allows someone from a remote location to take full control