Wireless Communication Methods by Phoebe Barnett https://padlet.com/phoebe_mb/yfx1zwcbxz4c OCR A2 Level ICT G063 - Phoebe Barnett en-us 2016-01-22 10:35:58 UTC 2023-02-18 02:14:13 UTC hello@padlet.com http://www.clipartlord.com/wp-content/uploads/2014/09/desktop-computer18.png Radio phoebe_mb https://padlet.com/phoebe_mb/yfx1zwcbxz4c/wish/90661385 Wireless communication using radio frequencies is more commonly known as Wi-Fi. Wireless communication supports three main standards - 802.11a, 802.11b and 802.11g. 802.11b supports bandwidth up to 11Mbps, whereas 802.11g supports bandwidth up to 54Mbps. There is also a draft 802.11n standard that supports a higher bandwidth, but at the time of writing, this standard has not been universally accepted.

Typical applications include:

  • wireless-enables laptops being able to connect to an organisation's network
  • laptops connecting to the internet using wireless 'hotspots' in places such as hotels, internet cafes, pubs, airports and train stations
  • laptops connecting to home networks
  • PCs with wireless NICs being able to connect to a network where cabling would be expensive or difficult to install
  • mobile phones and PDAs being able to access the internet using wireless networks instead of being charged per minute or per megabyte
  • games consoles can be connected to the internet within the home without the need for cables
  • printers can be connected to a wireless network.
]]> 2016-01-22 10:37:08 UTC https://padlet.com/phoebe_mb/yfx1zwcbxz4c/wish/90661385 Bluetooth® phoebe_mb https://padlet.com/phoebe_mb/yfx1zwcbxz4c/wish/90661395 Bluetooth® is a protocol for wireless communication. It has a range of about 10m and does not require line of sight. It was created to enable widespread communication between portable devices. The first Bluetooth® protocol (version 1.2) enabled data transfer rates of 1Mbps which was suitable for data transfer between laptops and mobile phones. A later version enabled data transfer rates of 2Mbps which was more suitable for laptops connecting to 3G mobile phones capable of connecting at higher bandwidths to the internet. In 2009, there are plans to produce a third version capable of transfer rates up to 480Mbps.

Typical applications include:

  • Bluetooth® headsets working with a mobile phone
  • transferring files between two mobile phones
  • connecting a mobile phone to a laptop to enable file transfers, using the mobile phone as a modem for the laptop and connecting a mobile phone to a GPS receiver for satellite navigation.
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