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What are Computer Viruses & what types of viruses are there?  

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What are Computer Viruses & what types of viruses are there? Computer Viruses have become a major concern of the government, corporations, and personal computer users. Not only do viruses cause a disturbance to everyday life, they can destroy existing files and can potentially cause major loss to the user. A computer virus is a program that attaches itself to existing files in the computer and infects it. Viruses are named after the biological contagion because a virus attaches itself to healthy files and then spreads to other parts of the computer. This process is replicate of a biological virus that would attach itself to a healthy cell and it spreads to other cells to infect a whole area of the body. The first acknowledged virus dates back to 1987 called the "Brain". The "Brain" is a boot sector virus. A boot sector virus affects the boot sector which is...

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