Friday, 25 November 2011



Telecommunications, also called telecommunication, is the exchange of information over significant distances by electronic means. A complete, single telecommunications circuit consists of two stations, each equipped with a transmitter and a receiver. The transmitter and receiver at any station may be combined into a single device called a transceiver. The free-space transmission and reception of data by means of electromagnetic fields is called wireless.
The simplest form of telecommunications takes place between two stations. However, it is common for multiple transmitting and receiving stations to exchange data among themselves. Such an arrangement is called a telecommunications net
Internet is the largest example. On a smaller scale, examples include:
·         Corporate and academic wide-area networks (WANs)
·         Telephone networks
·         Police and fire communications systems
·         Taxicab dispatch networks
·         Groups of amateur radio operators

Data is conveyed in a telecommunications circuit by means of an electrical signal called the carrier or carrier wave. In order for a carrier to convey information, some form of modulations required. The mode of modulation can be broadly categorized as either analog or digital. In  some contexts, a broadcast network, consisting of a single transmitting station and multiple receive-only stations, is considered a form of telecommunications. Radio and television broadcasting are the most common examples.

Important Of Telecommunication

Communication has been one of the most important aspects of the growth of human society and culture. Without it so many things would not get done, people would be divided, and the world would not be how it is. Telecommunications, the transmission of signals over a distance for a purpose of communication, is also very important.
Telecommunications has a long and creative history behind it. One of the first means of telecommunications, and maybe the first one actually, was the use of smoke signals. In classical and ancient times, this was a very effective means of communication in a smaller, more rural world.. Later development with a more advanced civilization and an industrious society allowed for the creature of telegraphs, radio, television, and eventually the internet.
Telecommunications provides a lot for the world. The commerce that telecommunications creates is a nice little chunk of the gross world product. It provides business, money and market stability in the world. Not only does it create these things as a product of itself, it benefits and enhances the whole world market by creating a tighter community and allowing for quicker reaction time and exchange of information.
There is also the contribution to science to consider. Development in telecommunication provides helpful research and foundation for other technologies. With the development and enhancements of the radio and understanding how radio waves work, flight has become one of the major benefits of telecommunications. While telecommunications are not the only factor, the ability to send information back and fourth from one location to another has allowed science to develop in places that can't always be monitored directly or visibly.
The impact that telecommunications have had on the world is evident. It's one of the leading causes of why the world has grown so big and become so helpful and aware of many issues. Telecommunications promotes a better awareness of society and human life. It helps develop solutions and gather support for causes and problems all over the world, making Earth a little closer and a little safer.

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