Curated from: computer.howstuffworks.com
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Many cities use WiFi to provide free or low-cost internet access to people. WiFi networks are easy to set up, inexpensive and unobtrusive.
A wireless network uses radio waves, just like cell phones, radios and televisions .
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Radios used for WiFi connections are similar to radios used for walkie-talkies or cellphones - they transmit and receive radio waves. They can change 1s and 0s into radio waves or from radio waves to 1s and 0s.
WiFi radios have some differences.
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A WiFi hot spot is used to refer to wireless networks that are accessible in public areas.
You can use your own cell phone to create a mobile hot spot or set up a WiFi network at home. If your computer does not have a built-in wireless transmitter, you can buy a wireless adapter that plugs into the USB port.
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You can create a wireless network with a wireless access point. For this, you'll need a wireless router.
A router contains the following:
When you plug in your router, it should work at its default settings but can be changed using the web interface.
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Using the web interface, you can select:
If you set your router to create an open hot spot, anyone can use your signal. Most people want to keep strangers out.
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Use one or more of the following methods to keep your network private:
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