Mobile Phone

What it is mobile phone ?

“Cell Phone” redirects here. For the film, see Cell Phone (film). For the Handphone film, see Handphone (film).
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The Qualcomm QCP-2700, a mid-1990s candybar style phone, and an iPhone 4S, a current production smartphone.

mobile phone (also known as a cellular phonecell phone and a hand phone) is a device that can make and receive telephone calls over aradio link whilst moving 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. By contrast, a cordless telephone is used only within the short range of a single, private base station.

In addition to telephony, modern mobile phones also support a wide variety of other services such as text messagingMMSemail, Internet access, short-range wireless communications (infraredBluetooth), business applications, gaming and photography. Mobile phones that offer these and more general computing capabilities are referred to as smartphones.

The first hand-held mobile phone was demonstrated by Dr Martin Cooper of Motorola in 1973, using a handset weighing around 2.2 pounds (1 kg). [1] 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 5.6 billion, penetrating about 70% of the global population [2] and reaching the bottom of the economic pyramid.

source : http://en.wikipedia.org/wiki/Mobile_phone

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