Download presentation
Presentation is loading. Please wait.
Published byPreston Todd Modified over 9 years ago
1
Ch 20. Computer Network Wireless Connections
2
Bluetooth3G MobileWiFi Speed3Mbit/s7.2Mbit/s54Mbit/s Coverage~10MCity – wide~50M CostFree$200 - $400 /monthFree Common usageMobile phone headset Mobile phoneNotebook
4
More secure than wireless Higher reliability: No interference due to obstruction like walls
5
Neat and clean, no untidy cables Flexibility around the home, can connect to the network around the house within a limited range.
6
IEEE 802.11a 5 Mbps IEEE 802.11b 11 Mbps IEEE 802.11g 54 Mbps IEEE 802.11n 150 Mbps Wireless Fidelity
7
More about Wi-Fi Access Point AP Wireless switch
8
Different types of AP More about Wi-Fi Access Point AP
9
More about Wi-Fi - HotSpot It’s a location installed with AP Coffee Shop
10
More about Wi-Fi - HotSpot It’s a location installed with AP PCCW Wifi
11
More about Wi-Fi – Gov Wifi Aimed to build Hong Kong Into a wireless City. Both secured & unsecured wifi are available. 100% Free!!
12
More about Wi-Fi – Gov Wifi Where you can find it? Recreational Facilities
13
More about Wi-Fi – Gov Wifi Where you can find it? Public Libraries
14
More about Wi-Fi – Gov Wifi Where you can find it? Sport Venus
15
More about Wi-Fi – Security Wireless security is very important to protect your data and privacy
16
More about Wi-Fi – Security Wi-fi Protected Access (WPA WPA2) Data encrypted using a network key during data transmission.
17
More about Wi-Fi – Security Unsafe protection method Wired Equivalent Privacy (WEP) Don’t use it!!!
Similar presentations
© 2025 SlidePlayer.com. Inc.
All rights reserved.