Mobile phone
hideA mobile phone or mobile (also called cellphone and handphone, as well as cell phone, wireless phone, cellular phone, cell, cellular telephone, mobile telephone or cell telephone) is a long-range, electronic device used for mobile voice or data communication over a network of specialized base stations known as cell sites. In addition to the standard voice function of a mobile phone, telephone, current mobile phones may support many additional services, and accessories, such as SMS for text messaging, email, packet switching for access to the Internet, gaming, Bluetooth, infrared, camera with video recorder and MMS for sending and receiving photos and video, MP3 player, radio and GPS. Most current mobile phones connect to a cellular network consisting of switching points and base stations (cell sites) owned by a mobile network operator (the exception is satellite phones, which are mobile but not cellular).
As opposed to a radio telephone, a mobile phone offers full duplex communication, automatised calling to and paging from a public switched telephone network (PSTN), handoff (am. English) or handover (European term) during a phone call when the user moves from one cell (base station coverage area) to another. A mobile phone offers wide area service, and should not be confused with a cordless telephone, which also is a wireless phone, but only offer telephony service within a limited range, e.g. within a home or an office, through a fixed line and a base station owned by the subscriber.
The International Telecommunication Union estimated that mobile cellular subscriptions worldwide would reach approximately 4.1 billion by the end of 2008. Mobile phones have gained increased importance in the sector of Information and communication technologies for development in the 2000s and have effectively started to reach the bottom of the economic pyramid.
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News tagged with mobile
Polluting pets: the devastating impact of man's best friend
Dec 21, 2009 |
1.7 / 5 (26) |
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Man's best friend could be one of the environment's worst enemies, according to a new study which says the carbon pawprint of a pet dog is more than double that of a gas-guzzling sports utility vehicle.
Samsung Launches M5650 Music Phone
Electronics / Consumer & Gadgets
Dec 21, 2009 |
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Samsung Electronics today unveiled the Samsung M5650, a music-focused addition to its popular lineup of full touch screen handsets for young mobile users.
FTC looking into Google's AdMob acquisition
Dec 23, 2009 |
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Web search and advertising giant Google said Wednesday that the US Federal Trade Commission (FTC) is seeking more information about its proposed purchase of mobile advertising company AdMob.
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Samsung pays in dispute over Kodak camera patents
Dec 23, 2009 |
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(AP) -- Eastman Kodak Co. said Wednesday that Samsung Electronics Co. has agreed to pay the camera maker an undisclosed sum as the two sides try to settle a dispute over patents used in Samsung's camera phones.
Researchers develop revolutionary technology for manufacturing micro-scale devices
Dec 22, 2009 |
4 / 5 (3) |
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(PhysOrg.com) -- Cranfield University has developed new technology that could significantly reduce the manufacturing costs of complex devices such as electronic noses that sniff out explosives and dangerous chemicals and ...
Stern's threat to quit Sirius could be empty talk
Dec 21, 2009 |
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(AP) --Howard Stern is threatening to leave Sirius XM Radio Inc. now that the shock jock and the satellite radio provider are getting set to enter contract talks in 2010.
Intel Announces Next-Generation Atom Platform (w/ Video)
Dec 21, 2009 |
2.6 / 5 (5) |
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Intel Corporation announced new Intel Atom processors today that feature integrated graphics built directly into the CPU, enabling improved performance and smaller, more energy-efficient designs in a new generation ...
Maine to consider cell phone cancer warning
Dec 21, 2009 |
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(AP) -- A Maine legislator wants to make the state the first to require cell phones to carry warnings that they can cause brain cancer, although there is no consensus among scientists that they do and industry leaders dispute ...
Would a Google purchase of Yelp draw regulatory interest?
Dec 21, 2009 |
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Google Inc.'s reported plans to acquire local-listings service Yelp may face difficulties, with regulators attuned to the Mountain View, Calif.-based company's established dominance of the Internet-search and advertising ...
Astronauts blast off for Christmas space mission
Space & Earth / Space Exploration
Dec 20, 2009 |
5 / 5 (2) |
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(AP) -- A Russian rocket blasted off from a cosmodrome in Kazakhstan lighting up the frigid Central Asian steppe Monday, shuttling an American, a Russian and a Japanese to the International Space Station.
Google phone revolution or misdirection?
Dec 19, 2009 |
3.8 / 5 (4) |
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Google smartphones are either a daring foray into the telecom world or a misunderstood test of the next-generation of the Internet giant's Android mobile operating system.
List of search results for mobile
