LYCOS RETRIEVER 
Telecommunication: Devices
built 234 days ago
Telecommunication is the transmission of signals over a distance for the purpose of communication. In modern times, this process typically involves the sending of electromagnetic waves by electronic transmitters, but in earlier times telecommunication may have involved the use of smoke signals, drums or semaphore or heliograph. Today, telecommunication is widespread and devices that assist the process, such as the television, radio and telephone, are common in many parts of the world. There are ... many networks that connect these devices, including computer networks, public telephone networks, radio networks and television networks. Computer communication across the Internet is one of many examples of telecommunication.
Source:
The elements of a telecommunication system are a transmitter, a channel, a line and a receiver. The transmitter is a device that transforms or codes the message into a physical phenomenon called the signal. The transmission channel, by its physical nature, is likely to modify or degrade the signal on its path from the transmitter to the receiver. The receiver has a decoding mechanism capable of recovering the message within certain limits of signal degradation by the communication channel.
Source:
It has ... been noticed that most of the developing countries and least developed countries are strengthening their telecommunication sectors in order to significantly develop both their economic and social sectors. In general, the telecommunication sector which includes telephones, internet, television and other electronic devices tend to keep people connected and paves the way for the transformation of information round the clock. All these have developed tremendously and improvements still continue to be made.
Source:
MORE ABOUT
Devices