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Vocabulary practice. 1. Fill in the blanks in the sentences with the necessary word(s); all the letters of the word(s) are given on the right. 1

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1. Fill in the blanks in the sentences with the necessary word(s); all the letters of the word(s) are given on the right.

1. Some … are designed to avoid wrist injures caused by hours of keyboarding. OAYEDSBKR
2. Certain input devices record and … the sound of the human voice into … signals. TRNVOEC TIIGDLA
3. Some input systems … a computer to understand a voice it has never heard. WOLLA
4. The first generation of digital cameras could create photos with … of 650 x 480 pixels.   ULOOESRNTI
5. An optical mouse requires less …; you can … it on any kind of surface. EANEACINNTM EANALMPIUT
6. Even a steady image on a monitor is constantly regenerated, or …, from top to bottom. DEEFHRRES

 

2. Fill in the missing words choosing from the variants given.

 

a) viewing angle b) pixel c) resolution d) surface

e) allows f) pitches g) display

 

1. A keyboard … the user to key in programs and data and to control the computer system.

2. An optical mouse uses an onboard chip to track a light beam as it bounces off a …, such as a desk, clipboard, or mouse pad.

3. Some … screens, can be classified as both input and output devices.

4. Greater … densities and smaller dot … yield sharper images of higher resolution.

5. A wide … indicates that you can view the screen from various positions without compromising image quality.

6. Printer … is measured by the number of dots printed per linear inch.

3. Match the beginnings and the endings of the statements given and make up an instruction for installing a peripheral device.

1.Once the connection is made, a) you’ll probably have to install driver software.
2. You have to use the expansion bus b) must match the peripheral device and a port on the computer.
3. If you want to install a peripheral device c) to recognize just any peripheral device automatically.
4. If it does not, d) PnP will recognize the new device.
5. If the right type of port is not available, e) you need PnP.
6. PnP is a feature that allows the computer f) you might have to add an expansion card.
7. The cable you use g) to make a connection between the system board and a peripheral device.

4. Fill in the gaps in the text with appropriate words.

 

Most computer systems include a keyboard and some type of _ 1 _ device for basic data input. A mouse is standard equipment with most desktop computer systems. For output, most computers include a display device. A _ 2 _ produces an image by spraying electrons toward the screen. _3 _ technology produces an image by manipulating light within a layer of liquid crystal cells. _ 4 _ screen technology creates an on-screen image by illuminating miniature fluorescent lights arrayed in a panel-like screen. Image quality for a display device is a factor of screen size, _ 5 _ ___, _6 _ of viewing angle, resolution, refresh rate, and color _ 7 _.

Speaking. Discuss the following questions.

1. What devices are used to get data into a computer?

2. What does a pointing device do?

3. What options are for output devices?

4. Which display technology produces the best image?

5. What printer technologies are most popular with personal computer users?

6. What are the operating characteristics of a printer?

7. How does a computer move data to and from peripheral devices?

8. What is an expansion slot? What is an expansion card used for?

9. What is an expansion port? What are other names for it?

10. Why do some peripheral devices include a driver disk or CD?

Critical Thinking. Read the article and express you opinion on the problem.


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