Дополнительное задание для получения зачета: Гр 2 Тема 1- упр на перевод ii-1


What for are telephones connected by a network of cables used?



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ИБ-96с Манин С.С. Задание 1

1. What for are telephones connected by a network of cables used? 
Telephones connected by a network of cables, are commonly used for the two-way transmission of speech.
2. What is a public Switching Telephone Network? 
Telephones connected by a network of cables, are commonly used for the two-way transmission of speech. The signals are switched from one line to another at switched centers known as telephone exchanges. Lines in a small area are switched by local exchanges, local exchanges are connected through trunk exchanges, and trunk exchanges are connected to other countries by international exchanges. Such a system is called a public Switching Telephone Network.
3. Is the telex system one of the oldest? 
Public telephone networks are used by many other data communications services. One of the oldest is the telex system.
4. How does the teletext work? 
This uses VDU terminals to transmit a variety of text and graphics characters.
5. Does a facsimile (FAX) system allow the transmission of text, graphics and photographic images? 
A facsimile (FAX) system allows the transmission of text, graphics and photographic images.
6. What makes contacting people on the move possible?
Contacting people on the move is possible using a radio paging service.
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