Advantages and Disadvantages of Telecommunications

3316 Words Feb 7th, 2013 14 Pages
I. Introduction
”Humans communicate with each other in many different ways. The simplest forms of communication involve talking out loud, using hand signs and writing down messages.
Technology is used to increase the number of ways people can communicate. People have invented devices and systems that allow individuals to talk to each other when they are not together. Communications technology is an important part of both today’s and tomorrow’s society.”
Telecommunication plays a vital role in keeping the balance of the renewed society since it has helped billions of people to keep in touch with each other although they are a million of miles away, even stresses out overseas. Although humanity has benefited from the resources and
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Facsimile, or fax machines are able to send and receive documents. Early system enabled newspapers to exchange photographs of events around the world. Faster and cheaper machines that used regular telephone lines became common during 1980’s. By the 1990’s, faxes could be sent and received using computers connected to telephone lines.” Using Light Waves-“Fiber-optic technology uses pulses of light generated by a tiny laser. These pulses are transmitted over very tiny strands of glass called optical fibers, which are able to carry much more information than cables or microwaves. A device detects the light and converts the signal back into electrical pulses.”
Using Radio Waves-“In 1901, Guglielmo Marconi sent a message in dots and dashes across the Atlantic Ocean using radio waves. Radio broadcasts of voices and music became a source of entertainment, but radio also provided a vital link for vehicles such as ships and planes because it enabled them to communicate without wires. Pagers, which are pocket-sized devices that display word messages or alerts, are a newer application of radio transmitter-receivers that cover small areas, or cells, are also very popular. Inventors began to experiment with broadcasting moving pictures over radio waves in the early part of the 20th century. Television was widely available by the middle of the century: Today, it is the leading source of news and entertainment. Even in the
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