Добавил:
Upload Опубликованный материал нарушает ваши авторские права? Сообщите нам.
Вуз: Предмет: Файл:
Сборник текстов по ИТ.doc
Скачиваний:
48
Добавлен:
20.11.2019
Размер:
774.14 Кб
Скачать

2. Read the article again and answer the questions.

  1. What is the "passive optical diode" made from?

  2. What does "nonreciprocal transmission" mean?

  3. What are the benefits of using the new optical diodes?

  4. What is the major factor limiting supercomputers today?

  5. How do the new optical diodes make it possible to eliminate these limitations?

3. Match a verb from a with a word or phrase from b to make phrases from the article.

A

B

  1. pass

  2. integrate

  3. handle

  4. create

  5. plug

  6. constitute

  7. require

  8. translate

  9. open

  10. transmit

    1. a new type of optical device

    2. external assistance to transmit signals

    3. into computer chips

    4. the door to optical information processing

    5. large quantities of data

    6. into electronic signals for use in computers

    7. the fiber directly into computers

    8. critical junctions in transistors

    9. in the forward direction

    10. a broad frequency range

4. Find words in the article which fit these meaning.

      1. a small piece of silicon that has a set of complicated electrical connections on it and is used to store and process information in computers

      2. 2.a piece of electrical equipment that makes an electrical current flow in one direction

      3. a closed system of wires or pipes through which electricity or liquid can flow

      4. the use of very thin glass or plastic threads through which light can travel to carry information, especially in telephone, television and computer systems

      5. the amount of information that can be carried through a telephone wire, computer connection etc at one time

      6. a material, such as silicon, which allows electricity to move through it more easily when its temperature increases, or an electronic device made from this material

5. Use the words in the box to complete these sentences.

diode fiber semiconductor bandwidth device optical chip photonic

  1. Many companies have found that domain controllers placed in smaller sites that were intended to reduce ………. usage actually increased it.

  2. The semiconductor device may be made as the tunnel ………..

  3. This ………. pulls characters or bits out of the video RAM and generates the video signal used to drive the monitor.

  4. In order to transmit data files or messages, this ………. requires a good quality connection to the network.

  5. The channel also can be made on the base of any ferroelectric ………..

  6. For the transmission of multimedia content, satellite technology is much more efficient than that of ………..

  7. The special processor as well as microcircuits of other ………. elements has input and output channels for sending information to computers of the inner and outer computer lines.

  8. The tracking system includes an electronic processor for processing control signals for correction of the ………. stereoscopic projection system.