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Английский язык. Основы компьютерной грамотности 64

technology permitted the elimination of some of thesecomponents and integration of most of the others on the same chip of semiconductor that contains the transistor. Thus the basic logic element — the switch, or "flip-flop', which required two separate transistors and some resistors and capacitors in the early 1950s, could be packaged into a single small unit in 1960. The chip was an important achievement in the accelerating step of computer technology.

3. In 1974 a company in New Mexico, called Micro Instrumentation Telemetry System (MITS) developed the Altair 8800, a personal computer (PC) in a kit. The Altair had no keyboard, but a panel of switches with which to enter the information. Its capacity was less than one per cent that of the 1991 Hewlett-Packard handheld computer. But the Altair led to a revolution in computer electronics that continues today. Hardware manufacturers soon introduced personal computers, and software manufacturers began developing software to allow the computers to process words, manipulate data, and draw. During the 1980s computers became progressively smaller, better and cheaper.

Today the personal computer can serve as a work station for the individual. A wide array of computer functions are now accessible to people with no technical background.

13. Поменяйтесь вариантами и выполните письменный перевод упр. 12.

TESTS

1. Подберите вместо пропусков подходящее по смыслу слово

1. Computers and their equipment are designed by

a computer system architect.

a) engineering;^)! accessory: c) specific

2. Digital computers use numbers instead of analogous phys-

ical .

a) symbols; b) equipment; c) quantities

3. Systems are usualy stored in read-only memory.

a) hardware; b) software; c) firmware

65 Unit 5. Computer Systems: An Overview

4. A computer is a machine with a complex network of elec-

tronic that operate switches.

a) circuits; b) cores; c) characters

5. In modern electronic computers the is the device

that acts as a switch.

a) integrated circuit; b) diode; c) transistor

6. A number of actions that convert data into useful infor-

mation is defined as .

a) data; b) processing; c) data processing

7. Computers can store, organize and retrieve great amounts

of information, far beyond the of humans.

a) capacities; b) capabilities; c) accuracy

8. The analyst a computer for solving problems,

while the computer system architect computers.

a) requires; b) designs; c) uses

9. The use of computers will continue to increase

with the growth in applications of microprocessors and minicomputers.

a) analog; b) digital; c) hybrid

10. The development of third generation computers became possible due to the invention of .

a) integrated circuits; b) electronic tubes; c) transistors

2. Согласуйте слова в левой колонке с их интерпретаци­ей, предложенной справа.

1. Computer a) a combination of interconnected

circuit elements produced in a chip to perform a definite func­tion

2. Analog computer b) a sequence of instructions en-

abling the computer to solve a giv­en task

3. Digital computer c) a tiny piece of silicon containing

¹ complex electronic circuits used

inside all computers

4. Hardware d) a system which processes and

stores great amount of data solv­ing problems of numerical com­putation

Английский язык. Основы компьютерной грамотности 66

5. Software e) a device which can carry out rou-

tine mental tasks by performing simple operations at high speed

6. Program f) electronic and mechanical equip-

ment in a computer system

7. Programming g) a set of programs, procedures and

associated documentation

8. Integrated circuit h) the process of preparation a set of

coded instructions for a computer

9. Chip i) a device that has input and output

represented in the form of physical quantities

10. Transistor j) a small piece of a semiconductor

that greatly reduced power con­sumption of a circuit

3. Раскройте скобки, употребляя:

Л. Правильную неличную форму глагола

1. Computing is a concept (embraced;embracing; for em­bracing) not only arithmetics, but also computer literacy. 2. We can make the computer do what we want (inputted; to input; by inputting) signals (turning; turned; without turning) switch­es on and off. 3. Computers have a means (by communicating; of communicating; communicated) with the user. 4. Comput­ers work according to the instructions (giving; given; to give) to it by users. 5. The transistor (inventing; invented; for inventing) in 1948 completely changed the vacuum tubes.

Б. Глагол в действительном или страдательном залоге

1. Computers (applied; are applied; are applying) for auto­matic piloting and automatic navigation. 2. The programs (write; have written; are written) to help people in the use of the computer system. 3. As digital computers (count; counted; are counted) quickly, they widely (use; used; are used) in busi­ness data processing. 4. Once data (entered; have entered; have been entered) correctly into the data processing system, the possibility of error (reduced; is reduced; are reduced). 5. It is known that an analyst (use; uses; is used) a computer to solve specific problems.

67 Unit 5. Computer Systems: An Overview

4. Прочтите текст и выберите правильные ответы на по­ставленные ниже вопросы к тексту.

FROM THE HISTORY OF COMPUTER DEVELOPMENT IN RUSSIA

As it is well known, Russian scientists made great contribu­tion into the development of computers. Russian mathemati­cian P. Chebyshev who lived in the 19th century was interested in calculators. Among many other mechanisms invented by him there was an arithmometer designed in 1876. It was one of the most unique calculating machines of the time. At the beginning of the 20th century Academic A.Krylov constructed a mechan­ical integrator for solving differential equations.

The first Soviet computer, a small-size computing machine (MESM) was tested in 1950 under Academician S.Lebedev. Next year it was put into operation. In a year MESM was fol­lowed by BESM, a large-size electronic computing machine, with 8000 opera­tions per second.

Serial production ofcomputers in the USSR has been started since 1953. That year U.Basilevsky headed the design and man­ufacture of computer STRELA. 1958 witnessed the production of Ы-.20, computers of the first gen­eration under the guidance of S.Lebedev. The first gen­eration of electron tube computers was followed by the second generation of foto transistor computers, using magnetic logic ele­ments.

Starting with 1964 semi­conductor computers —

Английский язык. Основы компьютерной грамотности 68

URAL, BESM-4 and M-220 were produced. Under Academi­cian Glushkov small-size computers MIR, MIR-2 and DNEPR were designed and tested at the Institute of Cybernetics.

In the late 60s together with other members of the Council of Mutual Economic Assistance the Soviet Union started on the program of Unified Computer System, the program concerned with the third generation of computers with high-speed perfor­mance and program compatibility (совместимость).

1. What was one of the first achievements in the sphere of calculating in Russia?

a) calculator; b) arithmometer; c) mechanical integrator

2. When was the first Soviet computer put into operation? a) in 1950; b) in 1951; c) in 1952

3. Who headed the serial production of computers in the USSR?

a) A.Krylov; b) S.Lebedev; c) U. Basilevsky

4. Which machine was the first in the development of the first

generation computers?

a) MESM; b) STRELA; с) М-20

5. When did the production of the third generation comput-

ers begin?

a) late 60s; b) early 70s; c) late 70s

ENJOY YOURSELF

I. Quiz-game "What do you know about computers?" (Who is the first to give the right answers to the questions below?)

1. What does "a computer-literate" person mean?

2. What is the role of computers in our society? v?. What is electronics?

4. Where are electronic devices used?

5. What jnvention contributed to the appearance of electronics?

6. When and where was the transistor invented?

7. What advantages did the transistor have over the vacuum tube?

8. When was the integrated circuit discovered?

69 Unit 5. Computer Systems: An Overview

9. What is the essence of the integrated circuit?

10. What is microelectronics?

11. What techniques does microelectronics use?

12. What scales of integration are known to you?

13. What do you understand by microminiaturization?

14. What was the very first calculating device?

15. Who gave the ideas for producing logarithm tables? 16.. Who invented the first calculating machine?

17. How was the first calculating machine called?

18. What was the first means of coding data?

19. What Business Corporation was the first to produce computers?

20- In what fields were the first computers used? 2JU When was the first analog computer build? 22^ What was the name of the first digital computer? f3T)Who built the first digital computer? 24Г What is ENIAC? Decode it.

25. Who contributed the idea of storing data and instructions in binary code?

25. What does binary code mean?

26. What were computers of the first generation based on?

25. What invention contributed to the appearance of the second generation computers?

25. What was the essence of the third computer generation?

30. What is the basis of the fourth computer generation? 5T) What is a computer?

"32. What are the main junciiom-of the computers?

33. What is a program?

34. What are data?

35. What is data processing?

$f& Name four advantages of computer data processing.

37. What is capacity storage?

38. What is hardware?

39. What is software?

40. Who designs computers?

II. Lexical games

Fill in the squares with nouns upon the models

71 Unit 5. Computer Systems: An Overview

Crossword 1.

Horizontally

1. A more favourable position; gain or benefit. 2. The fol­ lowing one thing after another. 3. Examination, experiment or trial. ^. The process opposite to multiplication. 5. The heart, the central part of anything. 6. The science dealing with micro- circuits. 7. Thickness, compactness; example: packing .

8. Application. 9. The doing smth; state of being in motion. 10. To put in writing, to print for future use. 11. Goal, purpose. 12. Memory. 13. Advantage, help; anything contributing to an im­provement in condition. 14. Intelligence, mental ability. 15. Method or manner of doing something. 16. Display. 17. A tiny crystall, containing an integrated circuit.

Vertically

1. Information. 2. Help. 3. Reply, answer or reaction. 4. A group of elements. 5. A unit keeping information. 6. Approach; means of approaching, getting. 7. A style or design; imitation of an existing object. 8. Different form of some thing; condi­tion or quality. 9. A mistake.10. A switch. 11. A fitting together of parts to make a whole. 12. Rate. 13. A model; cliche; stan­dard. 14. A system of symbols used for entering data into the computer. 15. A branch of systematized knowledge of nature. 16. An attempt; a hard try. 17. A device. 18. An example, a sam­ple, a model.

FUNCTIONAL ORGANIZATION OF THE COMPUTER

1. Ознакомьтесь с терминами текста 1.

operation [apa'reifn] — операция; работа; действие; сра­батывание

to relate [n'leit] — связывать; устанавливать отношения a broad view ['bro:d 'vju:] — широкий взгляд, обзор

unit I'jumit] — устройство; модуль, блок; узел; элемент; ячейка

input — ввод; устройство ввода; вводить; подавать на вход

to insert [m'sa:t] — вставлять; вносить; включать storage memory — память; запоминающее устройство available [a'veibbl] — доступный; имеющийся в наличии at the appropriate time — в нужное время

arithmetic-logical unit — арифметико-логическое устрой­ство

output — вывод; устройство вывода; выводить; подавать на выход

to remove [n'mu:v] — удалять; устранять; вынимать; ис­ключать

control unit — блок управления

cause ['ko:z]— заставлять; вынуждать; быть причиной; причина; основание

to feed (fed, fed) — подавать; питать; вводить (данные)

to interpret [m'tapnt] — интерпретировать; истолковы­вать

to issue commands ['isju: ka'marndz] — выдавать команды pulse — no-pulse — (есть) импульс — холостой импульс

73 Unit 6. Functional Organization of the Computer

2. Прочтите текст и назовите основные функциональныеблоки компьютера и их назначение.

Text 1. FUNCTIONAL UNITS OF DIGITAL COMPUTERS

As we know, all computer operations can be grouped into five functional categories. The method in which these five functional categories are related to one another represents the functional organization of a digital computer. By studying the functional organization, a broad view of the computer is received.

The five major functional units of a digital computer are:

1. Input— to insert outside information into the machine;

2. Storage or memory — to store information and make it avail­ able at the appropriate time; 3) Arithmetic-logical unit — to perform the calculations; 4) Output — to remove data from the machine to the outside world and 5) Control unit — to cause all parts of a computer to act as a team.

Figure 5 shows how the five functional units of the comput­er act together. A complete set of instructions and data are usu­ally fed through the input equipment to the memory where they are stored. Each instruction is then fed to the control unit. The control unit interprets the instructions and issues commands to the other functional units to cause operations to be performed on the data. Arithmetic operations are performed in the arith­metic-logical unit, and the results are then fed back to the mem-

Английский язык. Основы компьютерной грамотности 74

огу. Information may be fed from either the arithmetic unit or the memory through the output equipment to the outside world. The five units of the computer must communicate with each other. They can do this by means of a machine language which uses a code composed of combinations of electric pulses. These pulse combinations are usually represented by zeros and ones, where the one may be a pulse and the zero — a no-pulse. Num­bers are communicated between one unit and another by means of these one-zero or pulse — no-pulse combinations. The in­put has the additional job of converting the information fed in by the operator into machine language. In other words, it tran-saltes from our language into the pulse — no-pulse combinations understandable to the computer. The output's additional job is converting the pulse — no-pulse combinations into a form un­derstandable to us, such as a printed report.