PRESENTATION ON Computer virus

Presented By

Name: Farid uddin bhuiyan ID: 10112101082Intake: 24th.

What is computer virus?

Computer virus refers to a program which damages computer systems and destroys or erases data files.

Types of Computer Virus:

1.Time Bomb,2.Logical Bomb,3.Worm,4.Boot Sector Virus,

5.Macros Virus,6.Script Virus,7.Trojan Horse.

How Computer Viruses Work:

Computer viruses tend to grab our attention. On the one hand, viruses show us how vulnerable we are. A properly engineered virus can have an amazing effect on the worldwide Internet. On the other hand, they show how sophisticated and interconnected human beings have become.

What are the signs of viruses:A computer virus can cause unusual screen displays, or messages - but most don't do that.  A virus may slow the operation of the computer - but many times that doesn't happen.   Even longer disk activity, or strange hardware behavior can be caused by legitimate software, harmless "prank" programs, or by hardware faults.  A virus may cause a drive to be accessed unexpectedly and the drive light to go on but legitimate programs can do that also.

Actions to prevent virus infection:

- Always update your anti-virus software at least weekly.

- Back up your important files and ensure that they can be restored.

- Change the computer's boot sequence to always start the PC from its hard drive .

Actions to prevent virus infection:-Don't share Drive C: without a password and without read-only restrictions.

- Empty floppy drives of diskettes before turning on computers, especially laptops.

- Get trained on your computer's anti-virus software and use it.

Top seven Antiviral programs :

1.BitDefender Antivirus 2013

2. Norton Antivirus 2013

3. Kaspersky Antivirus 2013

4. AVG Antivirus 2013

5. McAfee Antivirus 2013

6. Avira Antivirus 2013

7. ESET Nod32 Antivirus 4

Thank You ALL