What Is Telecommunications?
What Is Telecommunications? Com 2400
Popular in Intro to Media and Telecom
Popular in Communication Studies
This 1 page Class Notes was uploaded by Rio Frohriep on Friday September 11, 2015. The Class Notes belongs to Com 2400 at Western Michigan University taught by Kayany in Summer 2015. Since its upload, it has received 85 views. For similar materials see Intro to Media and Telecom in Communication Studies at Western Michigan University.
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Can you just teach this course please? lol :)
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Date Created: 09/11/15
COMM 2400 Intro to Media and Telecommunications What is telecommunication TeleDistance Greek telos TelecommunicationCommunication at a Distance Telecommunication preelectricity Ways of communicating long distances before electricity Shout Become an orator and speak to large crowds Transportation Systems ie Messengers Broadcasting eg Smoke Signals Anyone who knew the code could understand the message In every type of communication there is a sender and a receiver Sender encodes the message into a medium and transmits the medium to the receiver Reliever decodes the medium and receives the message ex Speech written messages smoke signals telegrams When using a telecommunication system via message transportation the message could only travel as fast as the transportation system allowed Semaphore Tower System aka OpticalTelegram system Tall towers constructed connecting two cities People stood atop towers and relayed messages via flag signals all the way from one city to the other like the elementary game of Telephone but much more reliable DEF Semaphore Flag System is an alphabet signaling system based on the waving of a pair of handheld flags in a particular pastern from a line of high towers connecting two points Messages could travel much faster than the fastest mode of transportation Telecommunication postelectricity Telegraph writing at a distance William Cooke and Charles Wheatstone in England developed a Needle Telegraph which was used by sending different currents of electricity through a wire to cause a needle on the other end to move and spell out a particular message It was not very reliable however and was made obsolete by Samuel Morse s invention the Morse telegraph String a wire between two points and send a constant electric current through the wnre Periodically break up the signal in a certain code of dots and dashes morse code signals could travel at the speed of light 186000 msec and the telegram became the dominant means of communication Telegraph Network Instant communication between two points is possible provided there is a wired connec on Developing a network of telegraph lines became a big business Western Union dominant telegraph company Founded in 1851 Ended telegraph services in 2006 Submarine Telegraph Priority for the United Kingdom Atlantic Cable the submarine telegraph cable laid across the Atlantic Ocean connecting North America to Europe
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