my presentation on computer viruses

1. BY: Muhammad Yaqoob Sadiqe
Roll no. 03
B.com(hons)II regular

2. Flow of Presentation
 Introduction
 Symptoms
 How does it spread
 Types of computer viruses
 Prevention and Cure
 Antivirus Software
 Conclusion

3. INTRODUCTION
 They can also erase files or even format your floppy
or harddisk and crash the system
 Computer viruses are a type of software programe
that, like a biological virus, reproduces and spreads
itself
 Some virus may display only a message on the
screen other may slow down the pc

4. SYMPTOMS
 Letters looks like they are falling to the bottom of the
screen
 The computer system becomes slow
 The size of available free memory reduces
 The hard disk run out of space
 The computer does not boot

5. How does it Spread
 Computer viruses spread by atteching themselves to
other computer programe files
 When you exchange a file or pen drive with a viruses,
the virus spreads from one computer to the another
 Viruses also spreads when a computer engineer come
to repair your system and put his/her diagnostic disks
in your pc

6. Type of computer viruses
 BOOT VIRUSES
 POLYMORPHIC VIRUSES
 MACRO VIRUSES
 WORMS VIRUSES
 TROJANS

7. Preservation and Cure
 Install an antivirus programe
 Regularly update you programe
 Open email attachment files only if you are expecting
the attached files, or the sender is known and had
confirmed sending the file
 Try to avoid download any install software from the
internet
 Install only registered copies of soteware on the
system

8. Antivirus Software
 Norton Anti-virus
 Macfee
 Avast
 Quick Heal
 Panda
 AVG

9. Conclusion
 For better and safe computation anti-virus software
should be installed and be helpful for global network
system freely

10. By: Muhammad Yaqoob sadiqe
Roll no. 03
B.com(hons)II regular
Student of University Of Sargodha