Mobile phone is a portable device that can make and receive calls over a radio frequency link while the user is movie,video within a telephone service area. the radio frequency link establishes a connect to the switching system of a mobile phone operator, which provides access to the publish switched telephone network (PSTN). Modern mobile telephone services use a cellular network architecture, and therefor mobile telephones are often also called telephones or cell phones. 2000s-era devices support a variety of other services, such as text messaging, MMS, email, internal access, short-range wireless communication (infrared, bluetooth), business application, video game, and digital photography. these devices are known as feature phones.
The first handheld mobile phone was demonstrated by jhon F. mitchelland martin cooper of motorola in 1973,using a headset weighing c.2 kilogram (4.4lbs). in 1983, the DynaTAC 8000x was the first commercially available handled mobile phone. From 1983 to 2014, worldwide mobile phone subscriptions grew to over seven billion, penetrating 100% of the global population and reaching even the bottom of the economic pyramid.In first quarter of 2016, the top smart phone manufacturers were samsung, Apple, and Huawei (and "smart phone sales represented 78 percent of total mobile phone sales."
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