Monday, September 10, 2012

mobile phones


                        MOBILE PHONES

A mobile phone is also known as a cellular phone, cell phone and a hand phone is a device that can make and receive phone calls  around a wide geographic area. It does so by connecting to a cellular network provided by a mobile phone operator, allowing access to the public telephone network.
In addition to telephony, modern mobile phones also support a wide variety of other services such as text messaging, MMS, email, Internet access, short-range wireless communications (infrared, Bluetooth), business applications, gaming and photography. Mobile phones that offer these and more general computing capabilities are referred to as smartphones
Bluetooth:
Bluetooth is a proprietary open wireless technology standard for exchanging data over short distances using short-wavelength  , creating personal area networks (PANs) with high levels of security. Created by telecoms vendor Ericsson in 1994,[ it was originally conceived as a wireless alternative to RS-232 data cables. It can connect several devices, overcoming problems of synchronization. its an easy way to send and reseve information and media from another phones with Bluetooth facility.

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