Computer viruses parallel many facets of microbial infection. Unlike biological viruses, computer viruses can be thought of as a virus, worm, or Trojan infection. Computer viruses are programs that infect a computer and modify itself which permits it to spread throughout the computer’s software and hardware. Worms are programs that spread between computers through networking while a Trojan horse infection can make a computer available to non-authorized uses without knowledge from owner. Resembling biological viruses, computer viruses can be latent such as a herpes virus or HIV. Both have evolved to produce numerous variants and modified copies to ensure survival against their host’s means of evolving to protect against the infection. But what makes them different other than the obvious fact that computers viruses are “virtual” and biological are molecular based.
Unlike a biological virus, a computer virus is a small program written by human to alter the way a computer operates, without the permission or knowledge of the user. As stated previously,