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25. Give English equivalents for:

Удобная для восприятия человека форма; наиболее ча­сто употребляемые устройства вывода информации; раз­личаться по рабочим характеристикам и внешнему виду; принтеры с посимвольной печатью; принтеры с построч­ной печатью; принтеры с постраничной печатью; различ­ные методы печати; диапазон скорости; принтеры контак­тные и бесконтактные; ударять по ленте; печатать по одному символу; буквально все компьютеры; а также; тре­бования печати; принтер с типографским качеством печати; точечно-матричные принтеры; струйные принтеры; разбрызгивать капли чернил; высокое содержание железа; магнитные поля; принимать форму символа; кажется, что печатают по строчке; барабанный принтер; цепочечные принтеры; лазерный принтер.

Vocabulary Practice

26. Revise the meaning of new words from the text above. Give Russian equivalents for the expressions with them. Use them in your own sentences.

Approach: comprehensive approach; database approach; ed­ucational (training) approach; general approach; graphic ap­proach; self-study approach; step-by-step approach; trial-and-error approach.

Performance: application performance; computer perfor­mance; device performance; disk performance; display perfor­mance; error performance; execution performance; memory performance; network performance; processor performance.

Printer: black-and-white printer; color printer; character (at-a-time) printer; dot-matrix printer; graphical (image) printer; impact printer; ink-jet printer; laser printer; letter-quality print­er; matrix printer; network printer; page (at-a-time) printer.

Technique: advanced technique; analog technique; comput­ing technique; display (video) technique; formatting technique; hardware technique; measuring technique; modeling (simula­tion) technique; multimedia technique; numerical technique; programming technique; scanning technique; software tech­nique; testing technique.

27. Explain the use of Complex Subject construction and translate sentences into Russian:

1. Printers are known to vary greatly in performance and design. 2. They are expected to be the most commonly used devices. 3. Magnetic fields are supposed to effect a high iron con­tent of the ink. 4. The ink-jet printer is stated to be one of the newest types of character printers. 5. Electrophotographic tech­niques proved to have developed from the paper copier technol­ogy. 6. An impact printer is considered to produce a printed char­acter by impacting a character font against the paper. 7. Dot-matrix printers seem to have a lower quality of type. 8. The most com­mon printer type used on larger systems is sure to be the line printer. 9. A lot of techniques are believed to be used in the design of printers. 10 A laser is certain to be an acronym for light amplification by stimulated emission of radiation.

28. Suggest the title of the text that follows. Summarize the key information:

USEFUL Language

The text / article under review... (gives us a sort of infor­mation about...)

The article deals with the problem ...

The subject of the text is...

At the beginning (of the text) the author describes... (dwells on ...; explains...; touches upon...; analyses...; comments ...; characterizes ...; underlines ...; reveals...; gives ac­count of...)

The article begins with the description of..,, a review of..., the analysis of...

The article opens with ...

Then (after that, further on, next) the author passes on to ..., gives a detailed (thorough) analysis (description), goes on to say that ...

To finish with, the author describes ...

At the end of the article the author draws the conclusion that ...; the author sums it all up (by saying...)

In conclusion the author...

As it is well known, a computer cannot perform or complete any useful work unless it is able to communicate with its external environment. All data and instructions enter and leave the central processing unit through primary storage. Input-output devices are needed to link primary storage to the environment, which is external to the computer system. So input devices are used to enter data into primary storage. Output units accept data from primary storage to provide users with information or to record the data on a secondary storage device. Some devices are used for both the input and output functions.

The data with which these devices work may or may not be in a form that humans can understand. For example the data that a data entry operator keys into the memory of a computer by typing on a keyboard are readable by humans. However, the data that tell a computer about the performance of an automobile engine are not in a form that humans can read. They are electrical signals from an analog sensor. Similarly, output may be on a printed page, which humans can read easily, or upon some other medium where the data are not visible, such as on magnetic tape or disk.

As we know, all of the data flow from input to final output is managed by the control unit in the CPU. Regardless of the nature of the I/O devices, special processors called I/O interfaces are required to convert the input data to the internal codes used by the computer and to convert internal codes to a format which is usable by the output device.

29. Match the following terms with their definitions. Think of the corresponding Russian equivalents.

1. scanner

2. keyboard

3. touch pad

4. mouse

5. plotter

6. joystick

7. digital camera

8. magnetic disc

9. printer

a) a device producing output in a human-readable format;

b) a manipulator used mainly in computer games;

c) a device enabling to get video images in digital form;

d) a device converting the finger movement into the cursor movement , across the screen;

e) a device for direct data entry, which

can convert images into the comput­er form;

f) a special pen that can draw and in-

put texts;

g) a device inputting numerical and text

data by means of keys;

h) an optic-mechanical device helping

the user select images on computer display due to rotating balls;

i) an entirely electronic high-speed device keeping information.

LANGUAGE WORK: SUFFIXES

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