Automotive
How can mobile robots perceive and understand the environment correctly, even if parts of the environment are occluded by other objects? This is a key question that must be solved for self-driving vehicles to safely navigate ...
Sep 13, 2022
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155
Computer Sciences
Can artificial intelligence (AI) methods reliably detect child pornography images on end devices?
Sep 12, 2022
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16
Internet
Alphabet Inc.'s Google pays billions of dollars each year to Apple Inc., Samsung Electronics Co. and other telecom giants to illegally maintain its spot as the No. 1 search engine, the US Justice Department told a federal ...
Sep 9, 2022
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13
Telecom
Privacy advocates are demanding standards for mobile service providers' handling of sensitive customer information, especially location data, after a Federal Communications Commission inquiry into the top 15 carriers revealed ...
Sep 6, 2022
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11
Energy & Green Tech
From portable solar panels to smart thermostats and "intelligent" radiators, exhibitors at the IFA tech show in Berlin are touting smart solutions for an energy-starved world.
Sep 6, 2022
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5
Engineering
You're a hundred times more likely to die from being struck by lightning than you are from a bridge collapsing.
Sep 5, 2022
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9
Business
The future of satellite communications is almost upon us. SpaceX has signed a deal with T-Mobile to provide the carrier's customers with text services from its Starlink satellites anywhere in the U.S. starting next year.
Sep 5, 2022
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53
Business
Google allowed social media network Parler back into its Play Store Friday, more than a year after banning the platform popular with conservatives in the wake of the insurrection at the US Capitol.
Sep 3, 2022
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36
Business
T-Mobile has laid off several workers in engineering and network jobs this week as part of a restructuring program after the company's merger with Sprint two years ago.
Sep 1, 2022
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12
Consumer & Gadgets
Older, retired people can't call the IT department when their mobile phone fails, or their computer randomly shuts down. Instead, children and grandchildren often step in and help with ever-updating tech.
Sep 1, 2022
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3
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.
This text uses material from Wikipedia, licensed under CC BY-SA
