World Personal Computers - HowStuffWorks

world personal computers map
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How PCs Work

We've all used one, and most of us are sitting in front of one right now. Curious to know what's going on inside that ever-present PC? Here's your chance to find out -- without prying open your own.

How Computer Viruses Work

Computer viruses range from pesky to outright dangerous. Some just display a message, while others erase your entire hard disk. Clicking on what looks like a harmless e-mail message can lead to hours of recovery efforts, if not irreparable damage.