Telecommunication Essay - 3627 Words

Telecommunication 1. Introduction Computer and telephone networks inflict a gigantic impact on todays society. From letting you call John in Calgary to letting you make a withdraw at your friendly ATM machine they control the flow of information. But todays complicated and expensive networks did not start out big and complicated but rather as a wire and two terminals back in 1844. From these simple networks to the communication giants of today we will look at the evolution of the network and the basis 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†¦show more content†¦The patent issued to Bell was number 174,465, and is considered the most valuable patent ever issued. Bell quickly tried to sell his invention to Western Union but they declined and hired Elisha Gray and Thomas Edison to invent a better telephone. A telephone battle began between Western Union and Bell. Soon after Bell filed suit against Western Union and won since he had possessed the basic rights and patents to the telephone. As a settlement Western Union handed over its whole telephone network to Bell giving him a monopoly in the telephone market. During his experiments to create a functional telephone Bell pursued two separate designs for the telephone transmitter. The first used a membrane attached to a metal rod. The metal rod was submerged in a cup of mild acid. As the user spoke into the transmitter the membrane vibrated which in turn moved the rod up and down in the acid. This motion of the rod in the acid caused variations in the electrical resistance between the rod and the cup of acid. One of the greatest drawbacks to this model was that the cup of acid would have to be constantly refilled. The second of Bells prototypes was the induction telephone transmitter. It used the principle of magnetic induction to change sound into electricity. The membrane was attached to a metal rod which was surrounded by a coil of wire. The movement of the rod in theShow MoreRelatedTelecommunication Services And The Telecommunication Sector1165 Words   |  5 Pages1. INTRODUCTION: Just two decades ago, Bangladesh had a barely functional telecommunication infrastructure with the state-owned fixed-line service provider Bangladesh Telegraph and Telephone Board (BTTB) as the only operating telecommunication company in the country. The telecommunication system has experienced unprecedented and phenomenal growth only since 1996, when the first private telecommunication company GrameenPhone was authorized by the government to provide mobile GSM services. Due to expeditiousRead MoreTelecommunication Infrastructure Of The Telecommunications Sector1129 Words   |  5 Pagesforms like e-mail. 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