How does wireless device works?

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2. Contents • Introduction • History • Working • Applications • Advantages • Disadvantages www.howitwork.in

3. Introduction Wireless device is used to transfer data between two points which are not connected through any electrical conductors. Mostly wireless technologies use radio waves. These radio waves can make long distances into shorter. It includes different types of fixed and easily transported applications, and also involves two way radios, cellular telephones, personal digital assistants and wireless networking. www.howitwork.in

4. History In history the term wireless is used twice in communications, with slightly different meaning. It was initially used from about 1890 for the first radio transmitting and receiving technology, as in wireless telegraphy, until the new word radio replaced it around 1920. The long range communications are impossible or impractical to implement with the use of wires but they can be done using wireless operations. The term is commonly used in the telecommunications industry to refer telecommunication system. Examples : Radio transmitters and receivers which can use some forms of energy. www.howitwork.in

5. Working www.howitwork.in

6. Working This radio frequency technology is normally used in the wireless networks. Frequency within the electromagnetic spectrum associated with radio wave propagation system. When an RF current is supplied to an antenna, an electromagnetic field is created that is able to propagate through space. The potential for interference is especially great indoors, where different types of building materials can absorb or reflect radio waves, effecting the strength and consistency of a wireless networks signal. www.howitwork.in

7. Working In the same way all you need is to pick up a local radio station is a radio, all anyone needs to detect a wireless network, within nearby range is wireless equipped computer. There’s no way to selectively hide the presence of your network from strangers but you can prevent unauthorized people from connecting to it, and you can protect the data travelling across the network from prying eyes. www.howitwork.in

8. Applications • Mobile telephones • Data communications • Energy transfer • Medical technologies www.howitwork.in

9. Advantages • Portable • Complexity of wires is gone • Easy to communicate www.howitwork.in

10. Disadvantages • Signal problems occur frequently • Frequently to be charged • More expensive in nature www.howitwork.in