Computer virus
A computer virus is malware that seeks to alter the normal functioning of your computer without permission or knowledge of the user.
Viruses and imitations
There are different types of viruses, vary according to function or how it runs on our computer by altering the activity itself, the most common are:
Trojan: Consists steal or alter the system's hardware or in extreme cases allows a user to control external equipment.
Worm: It has the ability to replicate itself. Worms use theautomatic parts of an operating system that are generally invisible to the user.
Time or logic bombs: These are programs that are activated when a particular event occurs. The condition is usually a date (time bomb), a key combination, or certain technical conditions (Logicbombs). If there is the condition remains hidden from the user.
Hoax: The hoax are not viruses or are able to reproduce themselves. Content messages are false they prompt the user to make copies and send to your contacts. Often appeal to moral sentiments ("Help a child suffering from cancer") or the spirit of solidarity ("Notice of a new dangerous virus") and in any case, try to take advantage of the inexperience of novice Internet users .
Joke: As of hoaxes are not viruses, but they are annoying, an example: a porn site that moves from side to side, and if it falls short of making a mistake is possible to have a window that says: OMFG ! You can not close!
Shares of the virus
Some of the actions of some viruses are:
- Join a program installed on your computer allowing it to spread.
- Display screen messages or humorous images, generallyannoying.
- Slow down or lock your computer.
- Destroy information stored on disk, in some cases vital for the system, which will prevent operation of the equipment.
- Reduce disk space.
- Annoy the user by closing windows, moving the mouse ...
COGNATES:
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Exercise.
1.- Read the text and write what is the general idea of the text.
2.- What are keywords?
