telecommunication in our society

Interamenrican School

Is the transmission of information over significant

distances to communicate. In earlier times,

telecommunications involved the use of visual signals, such

as beacons, smoke signals, semaphore telegraphs, signal flags, and optical heliographs, or audio messages via coded

drumbeats, lung-blown horns, or sent by loud whistles, for

example. In the modern age of electricity and electronics,

telecommunications now also includes the use of electrical devices such as telegraphs,

telephones, and teletypes, the use of radio and microwave communications, as well as

fiber optics and their associated electronics, plus the

use of the orbiting satellites and the Internet.

What is the internet? The Internet is a global system of interconnected computer networks that use the standard Internet Protocol Suite (TCP/IP) to serve billions of users worldwide. What services does it provide? It gives you the services of information, communication and data transfer. What is Web 2.0? The term Web 2.0 is associated with web applications that facilitate participatory information sharing, interoperability, user-centered design, and collaboration on the World Wide Web.

What is a Bandwidth?Bandwidth (signal processing) or analog bandwidth, frequency bandwidth or radio bandwidth: a measure of the width of a range of frequencies, measured in hertz.How does a greater or smaller bandwidth affect you? It affects you because it gives more or less frequency.

What is a satellite? A satellite is an object which has been placed into orbit by human endeavour.What services or uses does a satellite provide? It is used for satellite television, telephone, fixed service satellite, direct broadcast satellite, mobile satellite technologies, satellite radio, amateur radio, satellite internet and military uses. What is an orbit? An orbit is a regular, repeating path that an object in space takes around another one. What is a communication satellite? Is an artificial satellite stationed in space for the purpose of telecommunications. Can you give examples of communication satellites? Modern communications satellites use a variety of orbits including geostationary orbits, Molniya orbits, other elliptical orbits and low (polar and non-polar) Earth orbits. What elements form a satellite system? Communications Satellites are usually composed of the following subsystems:

* Communication Payload, normally composed of satellite transponder, antenna and switching systems * Engines used to bring the satellite to its desired orbit

* Station Keeping Tracking and stabilization subsystem used to keep the satellite in the right orbit, with its antennas pointed in the right direction, and its power system pointed towards the sun * Power subsystem, used to power the Satellite systems, normally composed of Solar Cell, and batteries that maintain power during Solar Eclipse * Command and Control subsystem, which maintains communications with ground control stations, the ground controls earth stations monitor the satellite performance and control its functionality during various phases of its life-cycle.

hat is meteorology? Is the interdisciplinary scientific study of the

atmosphere. What is the importance of meteorology? Meteorology is important because we are learning about our atmosphere, the weather, and the things that shape our world. It helps us learn more about how to predict natural disasters and prevent more destruction. The nineteenth century saw breakthroughs occur after observing networks developed across several countries. Breakthroughs in weather forecasting were achieved in the latter half of the twentieth century, after the development of the computer.

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Meteorological phenomena are observable weather events which illuminate and are explained by the science of meteorology. Those events are bound by the variables that exist in Earth's atmosphere; temperature, air pressure, water vapor, and the gradients and interactions of each variable, and how they change in time. The majority of Earth's observed

weather is located in the troposphere.