Internet and Software -
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Network connections
A LAN (Local Area Network) is a group of computers (for example, within an office building or home) that share a
common communications line and resources. When you set up a network, you can share files, peripheral devices
(such as a printer) and an Internet connection. You can set up a LAN using wired technologies (such as Ethernet) or
wireless technologies (such as WiFi or Bluetooth).
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.
Note:
More detailed information is available in the InfoCentre wireless networks tutorial.
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.
Wireless Adapter
This is connected to the computer that you wish to connect to
your network, there are different types of wireless adapter
available, the most common are:
USB WiFi adapter
: Connects to a free USB port on your computer.
Wireless Expansion Card
: This card is installed inside your computer in
an available expansion slot.
