What is Computer Virus?

Computer Virus is the software program that have the ability to clone itself and can operate without the knowledge or desire of the computer user. 
  • It can also be described as a program designed to spread itself by first infecting executable files or the system areas and then making copies of itself. 
  • A computer virus is a program that is designed to replicate itself by copying itself into the other programs stored in a computer. It may be benign or have a negative effect, such as causing a program to operate incorrectly or corrupting a computer's memory. It is an executable program designed to make a computer do something that the user don’t necessarily want it to do. It is software program that can generate multiple copies of itself. It gets activated by its host program.
  • Computer virus is one of the biggest threats to computers today. All computer viruses are man-made. It is the intellectual destructive creation of computer programmer.
  • Some viruses may cause messages to appear on the screen but others are destructive and can wipe out the computer's memory or even cause more severe damage. They often cause erratic behavior and can result in system crashes. Viruses can easily hide within a system by attaching themselves to other files or programs.

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