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.
For more information about Mobile phone, read the full article at
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News tagged with mobile
Education Budget Cuts to Cause Increase in Mobile Technology Use
54 minutes ago |
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(PhysOrg.com) -- As budget cuts in education continue, we will see more use of mobile technologies in the classroom in 2010, predicts Dr. Vivian Wright, a University of Alabama educator.
Taiwan unveils super-tiny microchip
Dec 16, 2009 |
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Taiwan has developed tiny microchips that could lead to lighter and cheaper laptops or mobile phones, researchers and observers said Wednesday.
Bing app for iPhones hits App Store
Dec 16, 2009 |
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Microsoft announced that a Bing application tailored for Apple's beloved iPhones has hit the virtual shelves of its longtime rival's online App Store.
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Handheld Touch Screen Device May Lead to Mobile Fingerprint ID
13 hours ago |
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(PhysOrg.com) -- The Federal Bureau of Investigation Hostage Rescue Team had a problem -- they needed a small, portable tool to identify fingerprints and faces, but couldn't get anyone interested in building ...
Zoning the ocean may help endangered whales to recover
12 hours ago |
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Scientists in Scotland, Canada and the US have proposed a new method to identify priority areas for whale conservation. The team's findings, published in Animal Conservation, suggest that even small protected areas, identi ...
FCC offers early peak at national broadband plan
16 hours ago |
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(AP) -- Expanding the fund that subsidizes telephone service for poor and rural communities and finding more spectrum for wireless broadband services will be key pieces of a federal plan to bring high-speed Internet connections ...
Review: Netbooks meet luxury in ultra-light Sony
Electronics / Consumer & Gadgets
15 hours ago |
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(AP) -- Netbooks have been a hit among laptop buyers because they're cheap and they're easy to carry. Now there's the option to pay a lot more and get a lot less - a lot less weight, that is.
Surveying bird biodiversity from space?
20 hours ago |
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(PhysOrg.com) -- A fundamental rule of wildlife ecology says that diverse habitats foster greater biodiversity: The Amazon has far more species than Greenland. But how do habitat and biodiversity relate in a state like Wisconsin, ...
Launch of first operating system for smart grid home automation
22 hours ago |
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Fraunhofer IWES (Germany) presents the OGEMA Alliance, which will offer an open software platform for energy management.
Exploring energy efficiency in multi-scale computing systems
14 hours ago |
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The University of California, San Diego and nine other universities are members of a new research center charged with finding ways to improve the design of computing systems ranging from large data centers ...
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