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Understanding Wireless Networks

Wireless networking is insecure. You might think it's dangerous to have all your
personal data floating around in the air for anyone to read. Well, if you want, it's
dead easy to enable encryption for your wireless signals. It's already difficult for
outsiders to intercept wireless signals at all, and they certainly won't be able to
decode them as well.
Not Just at Home.
It was home users that were quickest to adopt wireless technology, willing to pay
any amount to finally be free of needing to run wires all over their house. Since
then, though, the technology has started to spread to offices, universities, and all
sorts of other places.
Chains of coffee shops and cafes have found that their customers will stay for
hours if they offer wireless Internet access, and it's also becoming more common
in hotels and airports. This means that once you set up a laptop for wireless, it
becomes far more portable than it ever was before.
How Do Wireless Networks Work?
Wireless networks work using radio waves instead of wires to transmit data
between computers. That's the simple version. If you're curious to know what's
going on in more detail, then it's all explained in this article.
Ones and Zeros.
I'm sure you know that computers transmit data digitally, using binary: ones and
zeros. This is a way of communicating that translates very well to radio waves,
since the computer can transmit ones and zeros as different kinds of beep. These
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