Internet and online security - 41
Wireless networks
A wireless LAN or WLAN is a wireless local area network, which may link two or more
computers without using wires. Setting up a wireless network is easy and allows you to
share files, peripheral devices and an internet connection.
What are benefits of a wireless network?
Mobility
Wireless LAN systems allow you and other users of your home network to share access to
files and devices connected to the network, for example a printer or scanner.
Also you can share an internet connection with other computers in your home.
Installation speed and simplicity
Installing a wireless LAN system can be fast and easy and eliminates the need to pull
cables through walls and ceilings.
Components of a wireless LAN
To set up your Wireless network at home you need to have the following:
Access point (router)
Access points (routers) are two-way transceivers that broadcast data into the
surrounding environment. Access points act as a mediator between wired and wireless
network. Most routers have a built-in DSL modem that will allow you access to a high
speed DSL internet connection. The ISP (Internet Service Provider) you have chosen
normally supplies a modem/router with the subscription to their services. Read carefully
the documentation supplied with your Access point/router for detailed setup instructions.
Network cable (RJ45)
A network cable (also called RJ45 cable) is used to connect the host computer to the
access point (see illustration below); this type of cable may also be used to connect
peripheral devices to the access point.
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