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Rocket clouds
WIFI by Mind Map: WIFI

1. Advantages

1.1. cheaper LANs

1.2. convenience,effective

1.3. Stable

1.4. run faster than 3G connection

2. Disadvantages

2.1. wireless traffic

3. WiFi Safety

3.1. WIFI password

3.1.1. hacking

3.2. Data security risks

3.3. WiFi cracker

4. USES

4.1. business

4.1.1. marketing

4.1.1.1. shopping mall

4.1.1.2. promotion

4.1.2. office use

4.2. Internet access

4.2.1. campus-wide

4.2.2. smart phone

4.2.3. Computers

4.2.4. online games

5. Background

5.1. began in 1997

6. common modes

6.1. Infrastructure mode

6.2. Ad hoc Mode

7. Hardware

7.1. Wireless Wi-Fi USB Adapters

7.2. Desktop Wireless Wi-Fi Cards

7.3. Laptop / Notebook Wireless Wi-Fi Cards

7.4. Wireless Wi-Fi Routers

7.4.1. Frequecy

7.5. Handhelds and PDAs