well,Strange as it may sound, the computer virus is something of an Information Age marvel. On one hand, viruses show us how vulnerable we are -- a properly engineered virus can have a devastating effect, disrupting productivity and doing billions of dollars in damages. On the other hand, they show us how sophisticated and interconnected human beings have become.
For example, experts estimate that the Mydoom worm infected approximately a quarter-million computers in a single day in January 2004. Back in March 1999, the Melissa virus was so powerful that it forced Microsoft and a number of other very large companies to completely turn off their e-mail systems until the virus could be contained. The ILOVEYOU virus in 2000 had a similarly devastating effect. In January 2007, a worm called Storm appeared -- by October, experts believed up to 50 million computers were infected.
let see the video to understand how its work in ourpcs /laptops
EXAMPLES
LET SEE THE EXAMPLE,WHICH MAKE THIS CONCEPT MORE CLEAR!!!!!!
HOW TO SAFE FROM VIRUSES!!!!!!
New antiviruses launched by Microsoft as well as other operating systems, some recognize and well known anti-viruses are
- MCAFEE
- NORTON
- AVG 2011
All above are reliable but i personally recommended Avg 2011 because McAfee and Norton slow down pcs but for professionals McAfee is superb!!!!
