seminar pptn on virus jlvlhj vvkly vkjhyvky

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1. COMPUTER VIRUS

2. WHAT IS A VIRUS ? A virus is software that spreads from program to program, or from disk to disk, and uses each infected program or disk to make copies of itself, basically in computer

3. How does a Virus Spread? First a programmer writes the virus most often being attached to a normal program; unknown to the user, the virus spreads to other software. then the virus is passed by disk or network to other users who use other computers. the virus then remains dormant as it is passed on.

4. The types of Viruses The way viruses are usually categorized is by what they do The boot virus which infects the boot sector of disk storage The program virus which infects the executable programs The multipartite virus which is a combination of the boot and program virus