If you've been in an airport, coffee shop, library or hotel recently, chances are you've been right in the middle of a wireless network. Many people also use wireless networking, also called WiFi or 802.11 networking, to connect their computers at home, and some cities are trying to use the technology to provide free or low-cost Internet access to residents. In the near future, wireless networking may become so widespread that you can access the Internet just about anywhere at any time, without using wires.
wifi....
how wifi works.....
WiFi has a lot of advantages. Wireless networks are easy to set up and inexpensive. They're also unobtrusive unless you're on the lookout for a place to use your laptop, you may not even notice when you're in a hotspot. In this article, we'll look at the technology that allows information to travel over the air. We'll also
review what it takes to create a wireless network in your home.
Configuring WiFi
On the newest machines, an 802.11 card will automatically connect with an 802.11 hotspot and a network connection will be established. As soon as you turn on your machine, it will connect and you will be able to browse the Web, send email, etc. using WiFi. On older machines you often have to go through this simple 3-step process to connect to a hotspot:
Access the software for the 802.11 card - normally there is an icon for the card down in the system tray at the bottom right of the screen.
Click the "Search button" in the software. The card will search for all of the available hotspots in the area and show you a list.
On the newest machines, an 802.11 card will automatically connect with an 802.11 hotspot and a network connection will be established. As soon as you turn on your machine, it will connect and you will be able to browse the Web, send email, etc. using WiFi. On older machines you often have to go through this simple 3-step process to connect to a hotspot:
Access the software for the 802.11 card - normally there is an icon for the card down in the system tray at the bottom right of the screen.
Click the "Search button" in the software. The card will search for all of the available hotspots in the area and show you a list.
Double-click on one of the hotspots to connect to it.
On ancient 802.11 equipment, there is no automatic search feature. You have to find what is known as the SSID of the hotspot (usually a short word of 10 characters or less) as well as the channel number (an integer between 1 and 11) and type these two pieces of information in manually. All the search feature is doing is grabbing these two pieces of information from the radio signals generated by the hotspot and displaying them for you.
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