Terms Defined- Internal Controls

May 29th, 2015
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A collection of transmitters, receivers or transceivers that communicate with each other is known as a network. Digital networks may consist of one or more routers that route data to the correct user. An analogue network may consist of one or more switches that establish a connection between two or more users. For both types of network, a repeater may be necessary to amplify or recreate

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INTRODUCTION:TELECOMMUNICATION The word telecommunication was adapted from the French word telecommunication. It is a compound of the Greek prefix tale- meaning 'far off', and the Latin communicate, meaning 'to share'. Telecommunication is the transmission of signals over a distance for the purpose of communication. In modern times, this process almost always involves the sending of electromagnetic waves by electronic transmitters but in earlier years it may have involved the use of smoke signals, drums or semaphore. 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 is also a vast array of networks that connect these devices, including computer networks, public telephone networks, radio networks and television networks. Computer communication across the Internet, such as e-mail and instant messaging, is just one of many examples of telecommunication.The basic elements of a telecommunication system are:a transmitter that takes information and converts it to a signal for transmission a transmission medium over which the signal is transmitted a receiver that receives and converts the signal back into usable information Often telecommunication systems are two-way and devices act as both a transmitter and receiver or transceiver. For example, a mobile phone is a transceiver. Telecommunication over a phone line is called point-to-point communication beca

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