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Wireless networks allow computers to interface without cables, making file sharing and internet access easier. All computers must have a wireless card, and security features like WEP keys can protect against unauthorized access.
The network allows two or more computers to interface with each other, whether in an office, library, or other type of facility, or at home. Running cables in an office or home can be tedious and time consuming, however, creating wireless networks, a network of interfaced computers that do not require any wired connection between computers, is preferable for many businesses and homes.
Wireless networking has many uses. In an office or workplace, it makes it easy to share files, printers and Internet access between all computers. Home or home office networks can allow users to print a file from a laptop without having to go to the printer and connect to it. These networks also mean that people can take their laptops to places that offer free WiFi®, known as ‘hotspots’, and instantly connect to the Internet, an invaluable tool for business people, entrepreneurs and students.
For a network to be wireless, all computers connected to it must have a wireless card. It’s pretty much the same thing as wireless Internet access, except that instead of connecting to the Internet, the user connects to another computer. Computers that can already access the Internet wirelessly can usually be set up to connect to each other just as easily. Many newer laptops on the market are fully equipped for wireless networking, and a consumer can purchase a wireless card to upgrade a computer if it doesn’t already have this capability.
There are several types of wireless cards available. The first cards on the market were 802.11b, but eventually the standard was upgraded to 802.11g. The latter type of card, being the newest, also has the fastest data transfer, making it the obvious choice for anyone serious about wireless connections.
Wireless networking and wireless Internet access may seem dangerous to some people. If the channel is left open, anyone can access the network; once on the network, that person could hack into one of the other computers, easily locating personal files containing sensitive information. What many people don’t realize is that wireless networks come with security features that can be configured to protect against such an event. One, called a WEP key, is essentially a password required before a computer can access the network, preventing any unauthorized use. People who are not sure how to set up this feature can call their wireless service provider or the manufacturer of their wireless modem or router for assistance.
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