Conventional cellphones

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Mobile Phone-A JourneyMainak Roy ChowdhuryCreated By : Branch : BCA (1st Year)

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The First Cell Phone

The first cell phone was invented by Dr. Martin Cooper , a former general manager for the systems division at Motorola

Name: Motorola Dyna-TacSize: 9 x 5 x 1.75 inchesWeight: 2.5 poundsNumber of Circuit Boards: 30Talk time: 35 minutesRecharge Time: 10 hoursFeatures: Talk, listen, dial

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Types Of Cell Phones

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Forms of mobile PhonesBarClamshellSliderSwivelA bar phone has resemblance to a candy bar in size and shape E.g.,

Clamshell phone consists of two or more sections connected by hinges allowing the phone to flip E.g.,

A slider phone is composed of usually two segments that slide past each other on rails

A swivel phone is composed of usually two segments that swivel past each other about a central axle

Mobile Computing TechnologiesGSMCDMAIt is Global System For Mobile communicationsIt is Code-Division Multiple AccessIt allows eight simultaneous calls on the same radio frequencyIn CDMA , every channel uses the full available spectrumIt has more than one billion users worldwide It is the common platform on which 3G technologies are built

e.g.,

e.g.,

The Powerhouse Of Mobile PhonesA mobile phone is run by an Operating System(OS)Microsoft and Symbian are the two stables that are leader in mobile OS

Todays Mobile Technology The mobile telephony landscape has changed and mobile phones are not just merely used for voice calling. They form the framework through which entertainment content is delivered to masses. They also provide GPS as well as video telephony

SAMSUNG Beam-Worlds First Projector Mobile Phone

Future Mobile Phones

Ericsson is predicting the future mobile device by 2012 with 20-megapixel camera, high-speed Internet with speed of more than 100Mbps, 1Ghz processor and 5G Technology

An upcoming phone from ALIENWARE

Mobile Phone, due to its utility, necessity and affordability, is one of the most ubiquitous gadgets that one finds in the present world of technologyThank You