Английский язык. Зачетная работа. 1-й семестр. 7-й вариант

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Текст №1
WHAT IS VOIP?
1. Voice Over Internet Protocol (VoIP) is a new technology that uses broadband Internet and network lines to transmit real-time voice information. This technology has the potential for completely changing the way phone calls are made and making phone companies a thing of the past.
2. To make a phone call on the Internet, several things must happen. On the sending side, analog voice signals are digitized, compressed, divided into packets and transmitted over network lines. On the receiving end, the signals are recombined, uncompressed and converted back into audio. Because the voice signals are digital, they can be transmitted just like any other data packets on a network. VoIP can be relatively inexpensive to implement, although costs rise as the complexity of the system increases.

Текст №2

In the 1960s, researchers began experimenting with linking computers. They wanted to see if computers in different locations could be linked using a new technology known as packet switching. This technology, in which data meant for another location is broken up into little pieces, each with it’s own “forwarding address” had the promise of letting several users share just one communications line. Their goal was not the creation of today’s international computer-using community, but the development of data network that could survive a nuclear attack.

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Дата оценки: 28.11.2016

Работа выполнена удовлетворительно. В задании 1- 2,8 пункты неверны и в задании 2- 4 и 8 также неверны.
Новикова Анна Юрьевна