May 13, 2012

Reflection #7

Wireless Technology

Dr. Dayang has proceeded the topic about wireless technology but unfortunately I couldn't come to class :(

Nevertheless, here is my entry to wrap up about the wireless technology. Well, I did some revision on my own about this topic.


  • Wireless telecommunications networks are a type of information transmission system that uses electromagnetic waves.

The Bluetooth logo

  • Bluetooth is an industrial specification for wireless personal area network or PANs.
  • Bluetooth is acceptable for situations when two or more devices are in proximity to each other and don't require high bandwidth
  • The distance covered only a very short range which is less than 10 meters. 
  • Devices involved : mobile phones, laptops, PCs, printers, digitial cameras and video game consoles. 

The devices that use Bluetooth can be connected to the laptop as well.


The IrDA logo.
  • IrDA (Infrared Data Association) is a technology where we can transfer any files from any devices by using infrared light, the one that is non RF.
  • The characteristic of infrared transmissions are: 
    • The power to transfer data is not so high.
    • Only can transfer in a short range, for example the remote control.
    • Mainly attached to mobile phones to transfer the data or files from one to another.
  • Nevertheless, many laptops sold today are equipped with an IrDA-compatible transceiver that enables communication with other devices, such as printers, modems, LANs, or other laptops.
  • However, the limit of transfer speed ranges from 2400 bps to 4 Mbps.
  • Requires line of sight transmission.
The various devices that can transfer files and data by using infrared communication.


  • It refers to a telecommunications signal or device of greater bandwidth with greater the information-carrying capacity.
  • Today, broadband is widely use to enable the internet access to laptop and mobile devices.
  • The device that is simply used is the broadband stick with different service providers.
The different service providers in Malaysia.

  • Mobile broadband allows for mobility so that the user can get internet access where ever there are. However, it depends on the service provider's coverage as well.
  • Fixed broadband are mainly used for home or business and more stable because it uses cable and usually runs on fibre.


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