Вопросы и задания.

1. Найдите в тексте предложения, содержащие следующие сочетания: “either…or…”, “this is why”, “i.e.”. Переведите эти предложения на русский язык.

2. Дайте перевод следующих слов и сочетаний:

number, numbering, a number of, the number of.

3. Переведите следующие предложения, содержащие сочетания:

“a number of” и “the number of”:

1. The instructions are carried out in the arithmetic unit which is made up of a number of electronic circuits.

2. The number of electronic computers in our country grows from year to year.

4. Заполните пропуски, выбрав нужный вариант:

1. There are ... main units in a digital computer. (four, five, three)

2. An input unit ... the data. (displays, stores, accepts)

3. A memory unit is used for ... the information. (storing, accepting, displaying)

4. An arithmetical unit ... the arithmetical or logical operations. (does not carry out, carries out)

5. An output unit is used for ... the results of the arithmetical operations. (accepting, storing, displaying)

6. Most digital computers operate with numbers in the ... system. (single, binary, third)

7. The advantage of the binary system is that only ... devices are required to represent any number. (five-state, one-state, two-state)

8. Two-state devices are ... computers available. (the simplest, cheapest and fastest; the most complicated, expensive and slowest; the most complex, dearest and not fast)

9. The process occurring in the two state-devices are the ... changes from one state to the other. (slow, rapid, neither rapid nor slow)

10. The control unit ... numbers from store. (selects no, does not select, chooses)

11. Data or information is supplied to the computer through the.... (output, unit, input unit)

12. Modern high-speed digital computers have ... for information. (few requirements, little appetite, enormous requiements)

13. There has been much research and effort in ... ways of feeding in data quickly and accurately. (reading, writing, devising)

5. Ответьте на вопросы:

1. How many units are there in a digital computer?

2. What system of numbering is used in digital computers?

3. What are the advantages of the binary system for a computer device?

4. In what way do magnets behave in the computer memory?

5. What does the control unit consist of?

6. What is a program?

7. Where are addition, subtraction, multiplication, division and elementary logical operations performed?

8. In what form is information supplied to through the input unit?

9. What are the input and output units for?

6. Разбейте текст на смысловые группы и озаглавьте их.

7. Расскажите о цифровой электронно-вычислительной машине, используя следующие слова и выражения:

main units, to store information, to carry out operations, to display the results, binary system, two-state device, a collection of tiny magnets, to convert, to devise a programme, digital electronic signals, tremendous appetite for information.

8. Составьте аннотацию к тексту, используя следующие выражения:

is reported, is presented, the present work outlines, is given, are examined, is described in details, a brief description is given, is shown in shorten, are summarized, are reviewed, a special attention is paid to.