Computer Sciences

Musical algorithm classifies classics

An efficient neural network can now take a series of music files as input and define them quickly by genre and style, thanks to work published in the International Journal of Web Science. Such a system could be a boon to ...

Internet

US tech titans look to ditch passwords

Apple, Google and Microsoft said Thursday they are looking to get rid of passwords and replace them with a more secure way to access accounts or devices.

Security

Spain: 2021 spyware attack targeted prime minister's phone

Spanish officials said Monday that the cellphones of the prime minister and the defense minister were infected last year with Pegasus spyware that is only available to government agencies in an unauthorized operation.

Britain gears up to watch TV in self-driving cars

Motorists can sit back and watch TV once self-driving cars are approved on British roads but will be banned from using handheld mobile phones, government plans revealed Wednesday.

Business

Examining the development of music streaming

Until the invention of audio recording devices, the music industry as it was involved live performance and the selling of sheet music for people to play their favorite pieces at home. The invention of recording and playback ...

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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.

This text uses material from Wikipedia, licensed under CC BY-SA