News tagged with cellphone
Researchers discover potential key to lowering energy costs of cell phones and data centers
(PhysOrg.com) -- A systematic analysis of power usage in microprocessors could help lower the energy consumption of both small cellphones and giant data centers, report computer science professors from The University of Texas ...
Technology / Computer Sciences
Feb 09, 2012 |
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GPS shoe lets families keep track of elderly relatives
A Teaneck, N.J., shoe maker has joined with a California technology company to create a shoe that uses GPS technology that records where a wearer walks - and can send alerts to caregivers if someone suffering from Alzheimer's ...
Electronics / Consumer & Gadgets
Feb 03, 2012 |
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O2 accidentally exposes customers' phone numbers
An untold number of U.K. residents may have unwittingly broadcast their numbers to sites across the Web while browsing the Internet with their cellphones during the past two weeks.
Jan 25, 2012 |
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Do consumers prefer to pay $29 for 70 items or get 70 items for $29?
Consumers can have vastly different reactions to the same package deal, depending on the order the price and quantity are listed, according to a new study in the Journal of Consumer Research.
Other Sciences / Social Sciences
Jan 17, 2012 |
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High-tech devices leave users vulnerable to spies
"You could now listen in 100 percent completely undetected" - that's the promise one company makes on its website to anyone who wants to eavesdrop on someone else's cellphone.
Jan 05, 2012 |
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Location-based 'geo-fencing' apps raise privacy concerns
Someone who is in a mall or near a favorite restaurant might get a message on their cellphone about a sale at a store or specials on the menu. Or they could be alerted that their child has left the school grounds.
Jan 05, 2012 |
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MetroPCS to sell phones with TV tuners
(AP) -- Cellphone company MetroPCS says it will sell phones with TV tuners this year, which means customers will be able to tune in to broadcasts from local TV stations.
Jan 04, 2012 |
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Verizon reverses on $2 fee for one-time payments
(AP) -- After a customer backlash, Verizon Wireless on Friday dropped a plan to start charging $2 for every payment subscribers make over the phone or online with their credit or debit cards.
Dec 30, 2011 |
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Verizon Wireless to charge $2 for one-time payment (Update)
Verizon Wireless, the country's largest cellphone company, said Thursday that it will start charging $2 for every payment subscribers make over the phone or online with their credit cards.
Dec 29, 2011 |
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Cox agrees to sell wireless spectrum to Verizon
(AP) -- Cable company Cox Communications on Friday said that it has agreed to sell some of its airwave licenses to Verizon Wireless for $315 million and will resell Verizon service in its stores.
Dec 16, 2011 |
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FBI contacted phone monitoring firm about software
A senior executive at a technology company that makes monitoring software secretly installed on 141 million cellphones said Thursday that the FBI approached the company about using its technology but was reb ...
Dec 15, 2011 |
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Early research on cellphone conversations likely overestimated crash risk: study
A Wayne State University study published in the January 2012 issue of the journal Epidemiology points out that two influential early studies of cellphone use and crash risk may have overestimated the relative risk of con ...
Dec 14, 2011 |
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Verizon pays $3.6 bn to buy spectrum from cable firms
US cellphone giant Verizon Wireless said Friday it will pay $3.6 billion to buy wireless spectrum from three leading cable providers which are bowing out of plans to plunge into the cellphone business.
Dec 04, 2011 |
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Cox kills Sprint-based cellphone service
(AP) -- Cox Communications, the country's third-largest cable company, stopped offering cellphone service Wednesday, saying it's too small to compete with the big phone companies.
Nov 16, 2011 |
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US Cellular: We turned down iPhone
(AP) -- U.S. Cellular, the country's sixth-largest cellphone company, says it had the opportunity to carry the iPhone but turned it down because the phone is too expensive.
Nov 04, 2011 |
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Mobile phone
A 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
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
