radio
194 ResultsDictionary
radio
(1) A device that either receives, transmits or transmits and receives wireless signals (electromagnetic waves). The term may refer to a stand-alone unit or only to the circuits that handle the...
Dictionary
Definition: radio
(1) A device that either receives, transmits or transmits and receives wireless signals (electromagnetic waves). The term may refer to a stand-alone unit or only to the circuits that handle the transmission. The phrase "the device has four radios" means the unit has four transceivers. For example, a modern smartphone can have four radios; one each for 3G, Wi-Fi, Bluetooth and GPS. See transceiver.
(2) The transmission of wireless signals (electromagnetic waves) through the air or through a hollow tube called a "waveguide." Although radio is often thought of as only AM and FM radio or sometimes two-way radio, all transmission systems that propagate signals over the air are "radio," including TV, satellite, portable phones, cellphones and wireless LANs. See spectrum.
Electromagnetic Spectrum
The radio portion of the entire spectrum of radiation is from 3 kHz to 300 GHz. This huge band of frequencies has been defined by the FCC in the U.S. and governmental bodies in other countries.
For the Early Adopter!
In 1925, you had to be dedicated to listen to the radio. Users had to tune three stages on this battery-operated Stewart Warner Model 325 to get a good signal, and once you got it, you wrote down the numbers on a log sheet (top) so you could tune in quickly the next time. (Equipment courtesy of Vintage Radio and Communications Museum of Connecticut, www.vrcmct.org)
THIS DEFINITION IS FOR PERSONAL USE ONLY
All other reproduction is strictly prohibited without permission from the publisher.
© 1981-2010 The Computer Language Company Inc. All rights reserved.
Sponsored White Papers, Webcasts & Resources
-
Live Webcast: Fast and Efficient Business Security Strategies
Check out this webcast to learn more about fast and efficient business security strategies. You're in the midst of an arms race, make sure you win it.
-
Student sends MIT letter to space
A 17 year old MIT hopeful did something creative with her acceptance letter - launched it in to space.
-
LTE spectrum sharing could accelerate coverage
German researchers have create algorithms that allow two or more LTE providers to use a network jointly, which can help reduce infrastructure costs, close coverage gaps, and speed availability to...
-
Careful with custom Android ROMs, you could be the problem
One of the reasons many smartphone enthusiasts pick up an Android smartphone is to tweak it with custom ROMs. However, you should also be careful or you could make things worse like I did.
-
Galaxy Tab 7.7, Transformer Prime, leadership changes (MobileTechRoundup show #259)
Kevin has the Galaxy Tab 7.7 and Asus Transformer Prime in hand and they both look sweet. There were several other topics to discuss this week in mobile too.
-
Spotify takes on Pandora, Slacker, others with updated Radio feature
Spotify launched in the U.S. and is working hard to be the premium streaming music service. The upcoming Spotify Radio feature addresses the last major issue I had and brings a Pandora-like...
-
-
World's smallest electric car made of single molecule
A team of European researchers have built a four-wheeled nano-sized "car" that can be propelled along a metal surface in a controlled manner.
-
Pandora CTO: Focused on the future of radio
At the Mobilize conference in San Francisco, Pandora CTO Tom Conrad discusses his views on the competitive landscape in music and the differences between Pandora and Spotify.
-
Pandora's HTML5 site redesign (photos)
Online radio titan Pandora unveils a new site design that utilizes HTML5 instead of Adobe Flash.
-
There's a hush in the air...
People in San Francisco and Silicon Valley are getting ready for Burning Man - the annual harvest festival -- a celebration of abundance and innovation.
-
At Motorola, a history of embracing, then rejecting, consumer spotlight
Motorola has a long history of developing and commercializing new communications technology. But the company is at its best when it exits before the market is mature.
-
Scientists create wireless network with LED room light
German researchers have demonstrated how regular LEDs can be turned into an optical WLAN with only a "few additional components."
-
France bans Facebook and Twitter from radio and TV
French television and radio news anchors are no longer allowed to say "Facebook" and "Twitter" on air.
-
IBM, Fort Worth aim to make emergency responders more collaborative
IBM and radio-over-IP company UnifiedEdge are aiming to make Fort Worth and Tarrant County, Texas emergency responders more collaborative as they respond to emergencies.
-
Slacker rolls out Premium Radio service with complete music selection controls
Slacker is my favorite music streaming service and today they announced a new tier to give the consumer even more control of the music they listen to. With offline support, the service is the way...
-
Breville Radio Toaster combines toast and tunes
With the introduction of Breville's latest kitchen appliance, traditional toasters are, well, toast.
-
The future of WLAN in the enterprise
How can an organization implement and scale a wireless network that will deliver the same quality of service as the predictable wired network?
-
Baseball season essentials for iOS and Macintosh
With the start of the MLB season, it's time to integrate the iPhone, iPad and Macintosh into your baseball experience. Some of these products have become essentials to my enjoyment of games at...
-
Internet killed the radio star: let NPR "go dark"
National Public Radio is facing the threat of losing its federal funding and having member stations lose their programming. But would this really be a bad thing?
-
Podcast: Frugal Tech Show with Microsoft on Windows Server 2008 R2 Service Pack 1
Ken Hess and Jason Perlow interview Michael Kleef of Microsoft's Server Group about enhanced Virtualization features in Windows Server 2008 R2 Service Pack 1
-
Podcast: Frugal Tech Show with Ubuntu Community Manager Jono Bacon
Ken Hess and Jason Perlow interview Jono Bacon, Canonical's Ubuntu Community Manager about the upcoming 11.04 "Natty Narwhal" release.
The best of ZDNet, delivered
ZDNet Newsletters
Get the best of ZDNet delivered straight to your inbox
Facebook Activity
