Добавил:
Upload Опубликованный материал нарушает ваши авторские права? Сообщите нам.
Вуз: Предмет: Файл:
Information Technologies Development and Perspe...doc
Скачиваний:
19
Добавлен:
01.04.2025
Размер:
2 Мб
Скачать
☆

2. Read the text and answer the following questions:

1. How are storage media classified?

2. How is the cost of storage devices expressed?

3. What is the access time for stor­age media?

4. How does the storage capacity range?

5. What are the two main types of storage devices?

6. What are electronic storage devices?

7. What are the principal primary storage cir­cuit elements?

8. What are the main secondary storage devic­es?

9. What is the oldest secondary medium and when was it invented?

10. What is a floppy disk?

3. Give English equivalents for:

Запоминающие устройства; носители памяти; первич­ные ЗУ; вторичные ЗУ; время доступа; стоимость ЗУ; диа­пазон емкости памяти; архивная память; движущиеся ме­ханические части; вращающиеся магнитные ленты и диски; по этим причинам; твердотельные устройства; маг­нитные сердечники; полупроводники; оперативное ЗУ; аппаратное обеспечение вторичной памяти; звукозапись; . намагниченные точки; представлять зашифрованную ком­бинацию единиц информации; в отличие от магнитных лент; последовательная и произвольная обработка; устрой­ства с движущейся и фиксированной головкой; удовлет­ворять потребности; гибкий диск.

4. Translate sentences with Participle I, Participle II, Perfect Participle Active and Perfect Participle Passive into Russian:

1. Electromechanical memories depend upon moving me­chanical parts for their operation. 2. The time required for the computer to locate and transfer data to and from a storage me­dium is called the access time. 3. Being not visible software makes possible the effective operation of computer system. 4. Having invented magnetic tapes the Germans used them as the secondary storage medium. 5. When properly programmed computers don’t make computational errors. 6. Having been in­troduced in the early 1960s magnetic disc storage has replaced magnetic tape storage. 7. The control unit interpreting instruc­tions is one of the important parts of any computer system. 8. Data recorded in the form of magnetized dots can be arranged to represent coded patterns of bits. 9. As contrasted with mag­netic tapes magnetic discs can perform both sequential and ran­dom processing. 10. While having no moving mechanical parts electronic memories can transfer data at very high speed.

5. In pairs, discuss what you should or shouldn’t do to protect your data. Use the suggestions below.

Example: discs on top of each other (stack)

You shouldn’t stack discs on top of each other. / Don’t stack discs on top of each other.

1. your anti-virus program regularly, since new viruses are created everyday (update)

2. discs in a protective case (store)

3. passwords and security devices to protect confidential information (use)

4. on discs with permanent marker pens (write)

5. the disc into the disc drive carefully (insert)

6. floppies or hard drives near magnets; they can damage the data stored on them (leave)

Note: disc (optical media); disk (magnetic storage media)

Соседние файлы в предмете [НЕСОРТИРОВАННОЕ]