Friday, September 20, 2013

ANTIVIRUS AND VIRUS

ANTIVIRUS

A  Software  program which is used to  prevent ,detect,  and  remove malware  .

When you use  antivirus  it  doesnt  mean that  your  system is fully  protected ,you  should  able to understand  the


Notification,and  act  according to it, periodically  updation   is very  important.


According to  Fedrick B. Coher's  1987  demonstration  there is  no  algorithm that  can perfectly  detect  all possible  viruses

There are several different  identification  methods  through which virus  can be identified.

Signature based detection.

Heuristics ,

Root disk   and  Real  time.

When you are  using  internet use Network  firewall ,it  is  not  alternative  to  antivirus ,but   prevents  the  damage  of  compute
From  different  networks  .

VIRUS

Computer  virus ,when you are using the computer regularly ,sometime you may feel that  the system  is  running slow

And most  of them uninstall and reinstall the antivirus  or update the antivirus, if   you are  regular  user of  internet  , you

Should use good antivirus plus you should update it  regularly ,this  will prevent malware  entering  into your  system and

Damaging your system ,and  when you  download  somefiles  from the internet  it  will be  downloaded with virus  ,without  the

Knowledge of  the user , and  antivirus cant  detect all the viruses  specially  the new one  .


Actually  the  virus  is  also  a  program  written  by  virus programmers ,virus  not only slow  down your system ,Occupy

The  hard  disk  space. But also steals your information   from  the  computer .


Virus is also a  program  and  antivirus  is  also  a program  so  it is  a fight between programmers, through  programming .


Earlier  in  1970 ARPANET was   also  infected by virus  ,by the virus  programmed  floppy  disk  ,by  the wide spread of  internet

Any  computer system can be infected by the virus .

There are different  types of  viruses  that attack on  the different part of the operating system ,some will attack  on the booting

Section of the hard  disk ,and   it  is difficult  to  deal  with  viruses   and  that   to  new  viruses ,computer  viruses  causes

Billions of  dollars  worth  economic  damage   each year ,due  to  causing  of   system  failure ,wasting  computer  resources,

Corrupting data, increase maintenance  cost  etc .

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