Direction: Please select a topic from the case study. You can choose any topic except for the topics covered in the previous issue. Examples of topics you might investigate include telecommunications usage to keep in touch with colleagues, telecommunications innovation, telecommunications management, new telecommunications technology, and so on. Do independent research on your subject and present your findings on location pictures on pages 15 - 20 (based on the text of the paper, excluding bibliographies, abstracts, catalogs etc).
The history of telecommunications is very good, full of inventions and improvements. The history of telecommunications began in Africa, smoke signals and drums were used in the United States and Asia. In the 1790s, the semaphore system first established in Europe appeared. Telecommunication systems appeared in the 1830's. Alexander Graham Bell invented a normal telephone in 1876. In 1878 and 1879, the first commercial telephone service was held in New Haven and London City. Diffusion of the Internet in the 1990's
In order to learn the details of fixed telephone service, it is necessary to understand the history of telecommunications and the history from telegraph to touch phone. Alexander Graham Bell first got a patent in 1876 and developed a device that allows people to communicate over long distances. The first fixed telephone was developed with the help of a wire connecting one house to another and from there to another house. The sound waves that convey the speaker's message are converted into an electrical form and are transmitted by wire. However, as it was not realistic to encompass a large number of people, the system and the new switch system were immediately abandoned.
Telecommunications is sending and receiving messages over long distances. The earliest form of telecommunications. Do you use banners, luminaires or smoke to visually mark the ball? It is clear that the term telecommunications refers to various electrical and electronic communication systems used throughout the world. Most telecommunications systems send messages via cable, radio or satellite. Many telegram messages and telephone conversations (especially local calls) are sent via the underground wire in the cable. Floor cables are associated with communication to the outside world. Television and radio broadcasts are transmitted in the air by radio waves. Radio waves called microwaves are also used for most long distance telephone communication phones, television and other communication signals around work are transmitted by communication satellites orbiting the earth.