WIFI
by Ngai Mei Yee
1. Disadvantages
1.1. wireless traffic
2. common modes
2.1. Infrastructure mode
2.2. Ad hoc Mode
3. Hardware
3.1. Wireless Wi-Fi USB Adapters
3.2. Desktop Wireless Wi-Fi Cards
3.3. Laptop / Notebook Wireless Wi-Fi Cards
3.4. Wireless Wi-Fi Routers
3.4.1. Frequecy
3.5. Handhelds and PDAs
4. Advantages
4.1. cheaper LANs
4.2. convenience,effective
4.3. Stable
4.4. run faster than 3G connection
5. WiFi Safety
5.1. WIFI password
5.1.1. hacking
5.2. Data security risks
5.3. WiFi cracker
6. USES
6.1. business
6.1.1. marketing
6.1.1.1. shopping mall
6.1.1.2. promotion
6.1.2. office use
6.2. Internet access
6.2.1. campus-wide
6.2.2. smart phone
6.2.3. Computers
6.2.4. online games