COMPUTER VIRUSES

COMPUTER VIRUSESCONTENTS:-• Introduction.• Symptoms.• How does it spread.• Types of Computer viruses.• Prevention and cure.• Antivirus Software.

COMPUTER VIRUSESINTRODUCTION:-• Computer viruses are a type of software

program that, that like a biological virus and spread itself.

• They can also erase file or even format your floppy or hard disk and crash the system.

• Some virus may slow down your computer.

COMPUTER VIRUSESSYMPTOMS:-• The computer system become slow.• The size of available free memory

reduces.• The hard disk run out of space.• The computer does not boot.

COMPUTER VIRUSESHOW DOES IT SPREAD:-• Computer viruses spread by attaching

themselves to other computer program files.

• When you exchange a file or pen drive with a virus, the virus spreads from one computer to another.

COMPUTER VIRUSESTYPES OF COMPUTER VIRUSES:-• Worms:- Worms are program file that

replicate and spread to other system.• Trojans:- A Trojan is a program file that

claims to do something but it actually does something that is not required.

COMPUTER VIRUSESPRESERVATION AND CURE:-• Install an Antivirus software.• Regularly update the program.• Try to avoid downloading and installing

software from internet.• Install only registered copies of software

on the system.

COMPUTER VIRUSESANTIVIRUS SOFTWARE:-• MCAFEE• AVAST• QUICK HEAL• NORTON • BITDEFENDER

COMPUTER VIRUSESCONCLUSION:-• For better and safe calculation anti-virus

software should be installed and be helpful for global network freely.

• It is good to be little aware of malware when you surf in the internet and download files. Some files that look interesting might hide a malware.

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