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1. Look through the following words and then answer the following questions:

Keyboard клавиатура

Key клавиша; кнопка; переключатель;

ключевой, основной; главный;

переключать; набирать на кла­виатуре

Manipulator манипулятор; блок обра­ботки

Trackball трекбол

Touch panel сенсорная панель

Graphic plotting tables графичес­кие планшеты

Sound card звуковая карта (плата)

Enable разрешать; позволять; допускать; де­лать возможным

Operating mode режим работы

Press a button нажать на кнопку

Keep buttons depressed удерживать кнопки в нажатом состоянии

Double-click двойное нажатие

Erase image удалить, стереть изобра­жение (объект)

Roller ролик; валик

Track следить; прослеживать; проходить; след; траек­тория; путь; дорожка; соединение

By means of посредством

Permitting capacity разрешающая способность

2. Put the necessary prepositions to the following sentences:

about, across, by, for, from, in, into, of, on, to, with.

  1. When personal computers first became popular, the most common device used to transfer information … the user … the computer was the keyboard.

  2. A standard keyboard has 104 keys and three more ones informing … the operating mode … light indicators … the upper right comer.

  3. Later when the more advanced graphics became to develop, user found that a keyboard did not provide the design capabilities … graphics and text representation … the display.

  4. There appeared manipulators, a mouse and a track ball, that are usually used while operating … graphical interface.

  5. The mouse has three or two buttons which control the cursor movement … the screen.

  6. The mouse's pri­mary functions are to help the user draw, point and select images … his computer display … moving the mouse … the screen.

  7. … general software programs require to press one or more buttons, sometimes keeping them depressed or double-click them to issue changes … commands and to draw or to erase images.

  8. When you move the mouse … a flat surface, the ball located … the bottom side … the mouse turns two rollers.

  9. Moving a finger along the surface … the touch pad is transformed … the cursor movement … the screen.

  10. The quality … graphical plotting tables is characterized … permit­ting capacity that is the number … lines per inch, and their capability to respond … the force … pen pressing.

  11. Scanner is used … optical inputting … images and texts and converting them … the computer form.

3. Put the missing words to the sentences:

Application, cameras, computers, control, data, digital, electronic, form, game-ports, information, mouse, movements, software, sounds, textual.

  1. There are several devices used for inputting … into the computer. 2. It enables inputting numerical and text …. 3. Each … program uses these buttons differently. 4. The … is an optic-mechanical input device. 5. The mouse provides the cursor … thus simplifying user's orientation on the display. 6. One is tracking the mouse's vertical …; the other is track­ing horizontal movements. 7. The rotating ball glides easily, giv­ing the user good control over the … and graphical images. 8. In portable … touch panels or touch pads are used instead of manipulators. 9. Graphical plotting tables find … in draw­ing and inputting manuscript texts. 10. You can draw; add notes and signs to … documents by means of a special pen. 11. They enable getting videoimages and photographs directly in … comput­er format. 12. Digital … give possibility to get high quality photos. 13. Sound cards produce sound conversion from analog to digi­tal …. 14. They are able to synthesize …. 15. Special … and joysticks are widely used in computer games.