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Videoconferencing
A videoconference (also
known as a
videoteleconference) is a
set of interactive
telecommunication
technologies which allow two
or more locations to
interact via two-way video
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Voice over IP
Voice over Internet Protocol
(also called VoIP, IP
Telephony, Internet
telephony, and Broadband
Phone) is the routing of
voice conversations over the
Internet or any other
IP-based network. The voice
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Mobile phone
A mobile phone or cell phone
is an electronic
telecommunications device
with the same basic
capability as a conventional
fixed-line telephone, but
which is also entirely
portable and is not required
... > full story
Microwave
Microwaves are
electromagnetic waves with
wavelengths longer than
those of terahertz (THz)
wavelengths, but relatively
short for radio waves.
Microwaves have wavelengths
approximately in the range
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Browse Reference Articles
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Satellite television
Satellite television is television delivered by way of communications satellites, as compared to conventional terrestrial television and cable ... > more -
Electrical engineering
Electrical engineering (sometimes referred to as electrical and electronic engineering) is a professional engineering discipline that deals with the study and application of electricity, electronics ... > more -
Mobile phone radiation and health
Mobile phone radiation and health concerns have been raised following the enormous increase in the use of wireless mobile telephony throughout the world (as of August 2005, there were more than 2 ... > more -
Electromagnetic spectrum
The electromagnetic spectrum is the range of all possible electromagnetic radiation. Above infrared in frequency comes visible light. This is the range in which the sun and stars similar to it emit ... > more -
Television
Television is a telecommunication system for broadcasting and receiving moving pictures and sound over a distance. Color television in the United States had a protracted history due to conflicting ... > more -
Radiant energy
Radiant energy is the energy of electromagnetic waves. The term is most commonly used in the fields of radiometry, solar energy, heating and lighting, but is also used less frequently in other fields ... > more -
Computer worm
A computer worm is a self-replicating computer program. It uses a network to send copies of itself to other nodes (computer terminals on the network) and it may do so without any user intervention. ... > more -
Global Positioning System
The Global Positioning System, usually called GPS, is the Earth's only fully-functional satellite navigation system. A constellation of more than two dozen GPS satellites broadcasts precise timing ... > more
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