Date post: | 27-Jun-2015 |
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A gadget for every oneMOBILE PHONE
A mobile phone (also known as a cellular phone, cell phone, and a hand phone) is a phone that can make and receive telephone calls over a radio linkwhile moving around a wide geographic area. It does so by connecting to a cellular network provided by a mobile phone operator, allowing access to thepublic telephone network. By contrast, a cordless telephone is used only within the short range of a single, private base station.
The first hand-held cell phone was demonstrated by John F. Mitchelland Dr Martin Cooper of Motorola in 1973, using a handset weighing around 2.2 pounds (1 kg). In 1983, the DynaTAC 8000x was the first to be commercially available. From 1990 to 2011, worldwide mobile phone subscriptions grew from 12.4 million to over 6 billion, penetrating about 87% of the global population and reaching the bottom of the economic pyramid.
Mobile networks & types:-
•Cell phones works on a network(radio link),this network forwards and recieves telphone calls.
•These networks are provided by a network operators through a sim card.
Types:-•1G•2G (GSM/CDMA).•3G (GSM/CDMA).•4G (GSM).
1G (FIRST GENERATION):-
•1G network is known as First generation network of wireless comunication.
•1G radio signals are analog signals
•1G is started in 1980.
•In 1G network we can forward and receive calls.
2G (SECOND GENERATION NETWORK):-
•2G network is generally known as second generation network.
•In 2G network we can forward and recive calls,text messaging, and allowing transfer of data,and can send MMS(multimedia message).
•On compared to 1G network 2G network signal is digitalised and increased penetration levels.
3G (THIRD GENERATION):-
•3G network known as Third generation network.
•In 3G network we can forward and receive calls,text mesaging,MMS,DATA services,& also video calling.
•It is faster than 2G.speed of DATA is upto 7 mbps
4G (FOURTH GENERATION):-
•4G is known as Fourth generation network.
•4G network is simmilar to 3G network but its faster than 3G.
•4G network can be used as a wireless broadband internet.
•Its data speed is upto 100 mbps.
NETWORK OPERATORS:-
There many network operators ,like:
Features of Mobile phone:-
•Messaging•Camera•Videos & audios•Internet•MMS•Games•Apps•Organiser•Media•Social networking•Video calling
BRANDS IN MOBILE PHONES:-
SMART PHONES:-
* A smartphone (or smart phone) is a mobile phone with more advanced computing capability and connectivity than basic feature phones.Early smartphones typically combined the features of a mobile phone with those of another popular consumer device, such as a personal digital assistant (PDA), a media player, a digital camera, or a GPS navigation unit. Modern smartphones include all of those features plus the features of a touchscreen computer, including web browsing, Wi-Fi, and 3rd-partyapps.
OPERATING SYSTEMS OF SMART PHONES:-
•ANDROID•MAC•WINDOWS•SYMBIAN
MANUFACTURING:-
•China is the first highest country manufacturing of mobile phones in world.
•India is the second highest country manufacturing of mobile phones in world
•Japan is the third highest country manufacturing of mobile phones in world
TELE COMUNICTION STATISTICS:-
•90,45,10,000 mobile phones are used in India.
•74 mobiles per 100 citizens.
•6,800,000,000 mobile phones are used around the world.
•In conclusion mobile phones are easily acceptable new trend and it plays a vital role for every individuals.
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