Zusammenfassung der Ressource
3G and WiFi
- Mobile Phones
- Bluetooth
- Small range (between 10-100m)
- Low power usage
- Allows users to share files between phones
- Can connect phone to wireless audio system e.g. car audio system or wireless headset
- 3G/WAP
- Data transfer speeds are slower than WiFi
- High power usage
- Can connect to broadband on the go
- Can be used to send/receive emails, texts, and voice calls
- Tariffs are expensive with low data allowance
- Smartphones and
PDAs
- 3G
- A subscription to a service provider e.g. Vodafone is required
- Data Transfer speeds are slower than WiFi
- Tariffs can be very expensive, with cheaper tariffs costing £20 per month for 15GB of data usage
- WiFi
- Can be used to download apps, email, videos and music
- High data transfer speeds (Up to 300mbps on 'N' Standard)
- High power consumption
- Bluetooth
- Used to transfer pictures and MP3s on mobile phones
- Can be used to play audio wirelessly
- Low power usage
- Range - Between 10-100m
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- Laptops
- WiFi
- Can connect to a wireless LAN using a
router to access the server and all
peripherals available to users of the network
- Data can be transmitted at speeds of up to 300 megabits per second
- Wifi hotspots can be found in city centres, hotels, airports and
cafés