Запомните необходимый минимум профессиональной лексики

cathode ray tube (CRT) электронно-лучевая трубка

image iconoscope передающий изображение кинескоп

transmitter carrier несущая частота

radiofrequency vision signals высокочастотные видеосигналы

detector output выход детектора

frequency-modulated signal частотно модулированный сигнал

sync pulses синхронные импульсы

to convert преобразовывать

to develop развивать, разрабатывать

to generate генерировать, вырабатывать

brightness яркость

Задание I

А. Определите

а) какой частью речи являются следующие слова:

Composite, brightness, essentially, modulate, closely, co-ordination, difference, density, involves, oldest, newer, type, transmitter, scanning

б) переведите приведенные выше слова, учитывая значение их суффиксов/префиксов.

Б. Образуйте и переведите однокоренные слова, относящиеся к другим частям речи (при затруднении обратитесь к словарю):

Enforcement (n, v), convert ( adj), transmission (v), controlling (v), generate (n), electricity (adj), density (adj), involves (n), detector (v), responsible, frequency (adj)

Задание II

А. Подберите эквивалент к словам, обозначенным цифрами:

1. object a. резервный

2. invention b. фильтр

3. redundant с. громкоговоритель, колонка

4. similarity d. обеспечивать

5. filter e. предмет

6. loudspeaker f. достигать, забираться

7. to provide g. усиливать

8. to achieve k. изобретение

9. to amplify i. передавать

10. to transmit j. схожесть, подобие

Б. Подберите эквиваленты к словосочетаниям, обозначенным цифрами:

1. the electron beam a. импульсный приемник

2. the composite signal b. сканер

3. a pulse receiver c. человеческое ухо

4. a scan unit d. поток электронов

5. the human ear e. композитный сигнал

В. Заполните пропуски, используя предложенные слова:

Amplifier, picture, complicated, transmitters

1. The transmission of video signals is more … than the transmission of audio signals by means of radio waves.

2. The tube in the television receiver is called the … or kinescope.

3. Received signals are fed to the video channel … that is essentially a pulse receiver.

4. Both … feed one common aerial through a special coupling filter.

Задание III

А. Найдите в тексте ответ на вопрос.

1. What is difference between the audio signals and video signals?

Б. Завершите предложение в соответствии с содержанием текста:

The movement of the electron beam in the television tube must…

В. Выберите предложение, смысл которого противоречит содержанию текста.

1. At the receiver, the sync pulses are extracted from the composite video signal and used to control the operation of the scan.

2. Television signals can’t be transmitted by means of transmission lines as well as by radio.

3. The image of an object is projected onto the camera tube.

Задание IV

A. Найдите в тексте абзац, в котором говориться о принципе аудио и видео сигналов в телевещании.

Б. Найдите в тексте и переведите предложение, содержащее союз “as … as …“.

Задание V

Выполните письменный перевод текста.

CHAPTER II

COMPUTER

Unit 1

Подберите русские эквиваленты следующим словам и словосочетаниям, содержащим интернациональные корни:

Instruct, perform, component, electronic, coordinate, instruction, printer, peripheral, data, peripheral

Прочитайте текст. Пользуясь словарем, определите значение незнакомых слов и выпишите их в тетрадь.

Computer as it is

Computers are electronic machines which can accept data in a certain form process the data and give the results of the processing in a specified format as information.

Three basic steps are involved in the process. First, data is fed into the computer’s memory. Then, when the program is run, the computer performs a set of instructions and processes the data. Finally, we can see the results on the screen or in printed form.

Information in the form of data and programs is known as software, and the electronic and mechanical parts that make up a computer system are called hardware. A standard computer system consists of three main sections: the central processing unit (CPU), the main memory and the peripherals.

Perhaps the most influential component is the central processing unit. Its function is to execute program instructions and coordinate the activities of all the other units. In a way, it is the “brain” of the computer. The main memory holds the instructions and data which are currently being processed by the CPU. The peripherals are the physical units attached to the computer. They include storage devices and input/output devices.

Storage devices (floppy, hard or optical disks) provide a permanent storage of both data and programs. Disk drivers are used to handle one or more floppy disks. Input devices enable data to go into the computer’s memory. The most common input devices are the mouse and the keyboard. Output devices enable us to extract the finished product from the system. For example, the computer shows the output on the monitor or prints the results onto paper by means of a printer.

On the rear panel of the computer there are several ports into which we can plug a wide range of peripherals – modems, fax machines, optical drives and scanners.

These are the main physical units of a computer system, generally known as the configuration.