Computer virus

 Answer these questions;

a) What is computer virus?
 # A computer virus is a destructive program that corrupts other program which replicates itself in order to spread from one computer to another without the knowledge of the user.

b) Write the symptoms of computer virus.
# They are;
* Programs disappear from the computer.
* Files take long time to load.
* Change the size of disks and files.

c) Write any 4 effects of computer virus.
 # They are;
*  It delete or change the contents of files.
* Viruses rename the files with different names.
* Viruses reduce memory or disk space of computer.
 * Viruses change the extension of files.

d) How does viruses spread from one computer to another?
# They are;
* Viruses spread by sharing oof infected portable disks among the computer.
* Viruses spread by the use of pirated software.

e)  What is antivirus software? Name some popular antivirus software.
# Antivirus software is a computer program design to detect and remove viruses from computer system. They are:- Kaspersky antivirus, Avast, NOD32 etc.

f)  How an we protect from Viruses?
# By the following ways:-
* Use updated antivirus software
*Update antivirus software frequently
* Install the latest security patch software

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