The last three are applicable to virus biology. As the human body, the computer can be attacked by infectious agents capable of altering its proper functioning or even cause irreparable damage on occasion.

A computer virus is a program of computer as it might be a processor of texts a spreadsheet or a game being all these typical programs that almost all world has installed their computers.

The computer virus is small in space in disk computer, we This its size is vital to go unnoticed and not be detected if not until after everything is infected which may overall general erasing hard disk of files not to mention all the damage has been caused during their stay in our computer for that is self rreplicarse property and carried out without knowledge of user which means that infects files doing copies of itself. It could say that computer viruses are a kind of mockery technology.

The vast majority of virus writers see it as a hobby, but also other viruses used as a means of propaganda or dissemination of their complaints or radical ideas, such as Telephonic virus, which broadcast a message of protest against fees of this company at the time he sought a better service, or the famous pulled by Silvia screen the direction of a girl who apparently did not had a good relationship with the programmer the virus.

Sometimes it is pride, or competition between the virus writers leading them to develop increasingly destructive viruses and hard control. But fortunately they are developing better antivirus.

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