1. Wireless Network Computer Science Engineering Technical English II
Prepared by:
Jorge Bastos – Class – DD
Flávio Cruz – Class – ED

2. Wireless Network WiFi (Wireless Fidelity) also known:
Wireless Networking
Works on radio waves frequency like a normal walkie-talkie
Computers can be up to 100 feet (35,5 meters)

3. Advantages of WiFi No need to plug wires
Wireless is the future of connectivity
Large variety of material at low costs
Simplicity and the large mobility

4. Adding WiFi to a Computer
One of the best things about WiFi is its simplicity!
Network card
Install the card
Install the drivers for the card
Find an hotspot
Access the hotspot.

5. WiFi's Technology
nomenclature comes from The Institute of Electrical and Electronics Engineers (IEEE)
802.11b was the first version to reach the marketplace. It is the slowest and least expensive of the three.
802.11a was next. It operates at 5 GHz and can handle up to 54 megabits per second.
802.11g is a mix of both worlds. It operates at 2.4Ghz but it has the 54 megabits per second speed of a.

6. Configuring WiFi Newest machines is automatic
Access the software for the card
Search Hotspot
Double Click on hotspot desired

7. Configuring WiFi On older Wifi equipment
There is no automatic search feature
Know the name of the hotspot (SSID)
Know the channel number (between 1 -11)

8. WiFi Security
To secure a Wifi network user needs to create a WEP key to connect.
WEP stands for Wired Equivalent Privacy
Encryption System
64-bit (original standard, easily broken)
128-bit (more secure, used nowadays)

9. Setting Up a Hotspot
If you want to connect several computers you need to setup a Hotspot
Wireless Access Point Router
1) a port to connect to your cable modem or DSL modem
2) a router
3) an Ethernet hub
4) a firewall
5) a wireless access point.

10. Configuring a New Hotspot
Most wireless access points come with default values built-in
The SSID -- normally is the manufacturer's name
The channel -- normally is channel 6 by default.
The WEP key -- The default is to disable WEP