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Telecommunication Essay

Project id 1002770
Subject area Self Improvement
Document type Essay
Words 1156
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Telecommunication 1. Introduction Computer and phone networks inflict a gigantic effect on today's society. From permitting you to call John in Calgary to letting you make a draw in the favorable ATM machine that they control the flow of information. But today's complex and pricey networks did not start out big and complicated but instead as a cable and two tails straight back in 1844. From these basic networks into the communication giants of today we'll look at the growth of the network and also the foundation on which it functions. 2. The Beginnings 2.1. Dot Dot Dot Dash Dash Dash Dot Dot Dot The network is defined as a system of lines or structures that cross. In telecommunications this is a connection of peripherals together so that they can exchange information. The first such exchange of information was on May 24, 1844 when Samuel Morse sent the famous message "What hath God wrought" from the US Capitol in Washington D.C. across a 37 mile wire to Baltimore using the telegraph. The telegraph is basically an electromagnet connected to a battery via a switch. When the switch is down the current flows from the battery through the key, down the wire, and into the sounder at the opposite end of the line. By itself the telegraph could express only two states, on or off. This limitation was eliminated by the fact that it was the duration of the connection that determined the dot and dash from each other being short and long respectively. From these types of combinations of dots and dashes the Morse code was formed. The code included all the letters of the English alphabet, all the numbers and several punctuation marks. A variation to the telegraph was a receiving module that Morse had invented. The module consisted of a mechanically operated pencil and a roll of paper. When a message was received the pencil would draw the corresponding dashes and dots on the paper to be deciphered later. Many inventors including Alexander Bell and Thomas Edison sought to revolutionize the telegraph. Edison devised a deciphering machine. This machine when receiving Morse code would print letters corresponding to the Morse code on a roll of paper hence eliminating the need for decoding the code. 2.2. Mr. Watson, Come Here! The first successful telephone was invented by Alexander Graham Bell. He along with Elisha Gray fought against t.. .

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