Probing Question: What are computer viruses and where do they come from?

Just as the flu can spread from human to human, a well-engineered computer virus can transfer from machine to machine--with a bad outbreak affecting tens of thousands, or even millions, of systems. Indeed, in a high-tech age, the potential for a large-scale mechanical meltdown makes computer viruses almost as much of a threat as the biological kind.

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<p><a href="http://www.physorg.com/news72632629.html">Probing Question: What are computer viruses and where do they come from?</a></p> <p>Just as the flu can spread from human to human, a well-engineered computer virus can transfer from machine to machine--with a bad outbreak affecting tens of thousands, or even millions, of systems. Indeed, in a high-tech age, the potential for a large-scale mechanical meltdown makes computer viruses almost as much of a threat as the biological kind.</p>