Telephone
hideThe telephone (from the Greek: τῆλε, tēle, "far" and φωνή, phōnē, "voice") is a telecommunications device that transmits and receives sound, most commonly the human voice. It is one of the most common household appliances in the developed world, and has long been considered indispensable to business, industry and government. The word "telephone" has been adapted to many languages and is widely recognized around the world.
The device operates principally by converting sound waves into electrical signals, and electrical signals into sound waves. Such signals when conveyed through telephone networks — and often converted to electronic and/or optical signals — enable nearly every telephone user to communicate with nearly every other worldwide. Graphic symbols used to designate telephone service or phone-related information in print, signage, and other media include ℡, ☎, ☏, and ✆.
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News tagged with phone
Google phone revolution or misdirection?
Dec 19, 2009 |
3.8 / 5 (4) |
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Google smartphones are either a daring foray into the telecom world or a misunderstood test of the next-generation of the Internet giant's Android mobile operating system.
College asks students to power down, contemplate
Dec 24, 2009 |
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(AP) -- Dianne Lynch wanted to give the students of Stephens College a break from the constant digital communication that pervades their generation. So she asked them to put their phones and computers away ...
Attention Demands May Explain Why Texting While Driving Is So Dangerous
Medicine & Health / Psychology & Psychiatry
Dec 21, 2009 |
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(PhysOrg.com) -- A timely study in the journal Human Factors suggests why texting while driving is riskier than talking on a cell phone or with another passenger. Human factors/ergonomics researchers at the University of Uta ...
Maine to consider cell phone cancer warning
Dec 21, 2009 |
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(AP) -- A Maine legislator wants to make the state the first to require cell phones to carry warnings that they can cause brain cancer, although there is no consensus among scientists that they do and industry leaders dispute ...
Samsung Launches M5650 Music Phone
Electronics / Consumer & Gadgets
Dec 21, 2009 |
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Samsung Electronics today unveiled the Samsung M5650, a music-focused addition to its popular lineup of full touch screen handsets for young mobile users.
