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 phone
GSM system about to be compromised
Dec 08, 2009 |
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(PhysOrg.com) -- Research scientists in California and elsewhere are deliberately setting out to compromise the mobile phone system used by around three billion people. The system uses Global System for Mobile ...
WHO study suggests link between cell phones and tumors
Oct 27, 2009 |
4.2 / 5 (23) |
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(PhysOrg.com) -- Preliminary results of an International investigation by the World Health Organization (WHO) suggest there may be a "significantly increased risk" of some types of brain tumors after use of ...
Bias affects cell phone cancer risk findings
Oct 15, 2009 |
3.5 / 5 (10) |
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(PhysOrg.com) -- A group of South Korean and American researchers has found studies of possible links between cell phones and brain tumors and other cancers vary in quality, and those suggesting there is little ...
Facebook Lite On its Way
Sep 15, 2009 |
3.8 / 5 (4) |
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(PhysOrg.com) -- The social networking site Facebook has begun testing a simpler, no-frills alternative to its regular interface. The cleaner, uncluttered interface is particularly aimed at entry-level users ...
The Asus New Folding E-Book Reader
Electronics / Consumer & Gadgets
Sep 09, 2009 |
4.7 / 5 (14) |
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(PhysOrg.com) -- Asus has demonstrated a prototype of an e-book reader it is developing. Unlike its competitors, the device resembles a normal book, having two touch screens that will fold up.
Nokia Showcases 3D Cell Phone
Electronics / Consumer & Gadgets
Sep 04, 2009 |
3.5 / 5 (4) |
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(PhysOrg.com) -- Finnish giant Nokia, the world's biggest phone manufacturer, is developing a 3D mobile phone with a stereoscopic display. And you don't need 3D glasses to get the three-dimensional effect.
Doing More with Your Cell Phone
Electronics / Consumer & Gadgets
Aug 10, 2009 |
4.5 / 5 (2) |
4
(PhysOrg.com) -- As technology shrinks, and as it becomes possible to unplug and still conduct all of your business from a hand-held device, we demand more convenience. And there are two entities leading the ...
Augmented Reality: Science Fiction or Reality? (w/ Video)
Jul 07, 2009 |
4.7 / 5 (17) |
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(PhysOrg.com) -- Computer graphics have come a long way since the birth of Atari Games over 30 years ago. Today, computer graphics seem very real and some day researchers will pull graphics out of your television ...
First Smartphone with 1GHZ Processor (w/ Video)
Electronics / Consumer & Gadgets
Jun 24, 2009 |
4.6 / 5 (5) |
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(PhysOrg.com) -- Looks like the Apple iPhone 3G S may soon have some serious competition with the soon to be announced, Toshiba TG01 smartphone. The TG01 is expected to be officially announced at the Mobile ...
Scientists predict mobile phone viruses will pose a serious threat
Technology / Computer Sciences
May 21, 2009 |
5 / 5 (5) |
3
(PhysOrg.com) -- If you own a computer, chances are you have experienced the aftermath of a nasty virus at some point. In contrast, there have been no major outbreaks of mobile phone viral infection, despite ...
Google tests new phone to profit from mobile Web
Electronics / Consumer & Gadgets
5 hours ago |
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(AP) -- Google Inc. is determined to gain more influence over how the Web is used on mobile phones, even if the next step in the quest tramples some of the relationships forged during its two-year expansion ...
Neuroscience in the driving seat
Medicine & Health / Neuroscience
Dec 11, 2009 |
5 / 5 (1) |
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It emerged today that more drivers are using hand-held mobile phones than two years ago, despite the introduction of tougher penalties. The Transport Research Laboratory is worried because phone-using drivers ...
Google search getting eyes and ears
Dec 08, 2009 |
5 / 5 (2) |
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Google search is getting eyes and ears, moving beyond typed key words to let people scour the Internet with mobile telephone cameras or spoken words in multiple languages.
iPhones are musical instruments in new course and ensemble (w/ Video)
Dec 01, 2009 |
3.4 / 5 (9) |
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(PhysOrg.com) -- iPhones are being used as musical instruments in a new course at the University of Michigan.
iPhone comes to China without key feature
Electronics / Consumer & Gadgets
Oct 30, 2009 |
3.8 / 5 (4) |
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(AP) -- Apple's iPhone is making its long-awaited formal debut in the world's most populous mobile phone market, without a key feature and at higher prices than widely available black market models.
