Before understanding what a computer virus is, it is necessary to understand what a virus is when it occurs in a living form (such as a human body, an animal, or a plant). Only able to reproduce itself within another living cell or body, a virus is a small organism. BTW, I found a site about Computer maintenance repair in Spanish:mantenimiento reparacion de computadoras. Body cells can be damaged as a result of a viral infection and an individual will become ill as consequence.
The word virus comes from Latin and literally means 'poison' and that is basically what it is - a 'poison', able to reproduce itself within another cell or body and an example of an illness caused by a virus is the flu. In relation to computers, a computer virus is a harmful computer program which is able to duplicate and spread itself within a computer or computer network and will damage files or the computer itself. The virus can be anywhere on your computer, concealed within a program, file or document.
These viruses are generated and spread to other people's computers by criminals, and other gifted idiots with nothing better to do with their time. Causing havoc is the main reason for doing this. Similar to a common virus like the flu (which spreads from person to person), the computer virus has the ability to spread and 'infect' other computers, files or documents. Files and documents can have a computer virus spread through them such as word-processing documents, spreadsheets, emails, computer programs etc. As well as through removable storage devices such as memory sticks and floppy disks, it can spread itself through the Internet and through local computer networks. Because it is hidden, it is hard to detect and it can be spread to other computers, unknowingly, by the computer user.
Akin to a human virus that makes a person feel unwell, the computer virus works in a similar fashion within a computer. A 'digital virus' will literally make your computer 'sick' and just what each type will do to your computer depends on what it has been programmed to do - some can be very harmful, while others are created to simply annoy. Examples of terms used to describe different types of computer viruses include Macro Viruses, Email Viruses and Trojan Horses. Understanding the basics of what viruses are is the first step to learning what to do about them, and how to be completely in control of your computer's security.
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Dianara Villa
Friday, June 12, 2009
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