Joseph Tainter wrote:

Upon powering up my new Dell laptop, it immediately starts looking for wireless networks nearby, and has found several. The computer, of course, came with no printed manual, and the one on the hard drive is not too informative.

Can anyone recommend good web sites where I can learn how to use this technology? And particularly how to remain safe while doing so?

What will happen if I tell the computer to connect to one of the networks it has detected nearby?

If one goes to a university with a wireless network, or an airport, or a Starbucks, how does one get the encryption key? Or do such places require encryption keys?

Is turning off file and printer sharing enough to ensure security on a wireless network?

No. Otherwise, how would hackers be able to command computers from afar? If you access an unencrypted network, _someone_ will have found a way to access your machine. Do you think MS or Apple would tell us? Although it is tempting, accessing unencrypted networks seems to be asking for trouble, especially in very public places.

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