2015-06-04
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11. Запомните слова:
| access data | получить доступ к данным; |
| altitude | высота; |
| amplify | усиливать. |
| atop | наверху; |
| coaxial cable | коаксильный кабель; |
| communications channels | коммуникационные каналы; |
| complete | завершать; |
| connect | соединять; |
| decrease | уменьшать; |
| dedicated line | выделенная линия; |
| download | загрузка из главной ЭВМ в подчиненную; |
| establish | устанавливать; |
| fiber-optic cable | оптоволоконный кабель; |
| headquarters | штаб; |
| line-of-sight | линия прямой видимости, радио- видимость; |
| microwave relay station | микроволновая ретрансляционная станция; |
| pathway | путь; |
| satellite | спутник; |
| shared line | общая линия; |
| strand | нить; |
| switched line | коммутируемая линия; |
| terminal-to-host | терминал-к-хосту (главной вычислительной машине); |
| transmission | передача; |
| twisted pair wire | провод витой пары; |
| upload | загрузка в удаленный компьютер; |
| via | через. |
Прочтите и переведите текст.
TEXT A
COMMUNICATIONS NEEDS
Today, computer communications serve a variety of needs, but most often we use communications to access data that is stored on another computer or to send data to another computer. For example, you may want to access data that is stored as a database of information on a mainframe computer at company headquarters. When you establish communications with another computer, you download data (transfer data from a remote computer to your computer), or you can upload data (transfer data from your computer to a remote computer).
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Computer-to-Computer Communications
One of the most common communications uses is the exchange of data between two computer systems. The communication can be between two microcomputers.
Terminal-to Host Communications
Often a communications channel will be permanently established to access data that is stored on a host computer. In such a case, you might communicate with the host computer using a microcomputer or using a terminal (which includes a keyboard and a display monitor, but does not include any data processing or storage capability). Although a terminal can be purchased at low cost, with the price of microcomputers constantly decreasing, many terminals are being replaced with these small personal computers that can be used for other tasks in addition to communications.
13. Ответьте на вопросы:
1. What do we use communications for?
2. What does a terminal includes?
3. What can replace a terminal?
4. How can we access data that is stored on another computer?
Прочтите и переведите текст.
TEXT B
