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Task 3.






Find in the text the terms with the following meaning.

1. One of the small units that makes up an image on a computer or television screen.

2. An expansion card that generates the video signal sent to a computer display.

3. The width of the screen in proportion to its height.

4. It is also called gas discharge display.

5. The number of pixels contained in a display, horizontally and vertically.

6. The number of bits used to hold a colour pixel (it determines the maximum number of colours that can be displayed).

7. The most common computer display technology, made of two glass plates.

8. A device used to show images on a wall or large screen.

9. A device that accepts video signals from a computer and displays information on its screen.

10. A glass tube with a screen that glows when phosphor dots are struck by electron beam.

11. Measurement unit for luminance.

12. Amount of light emitted. It can be light, normal, and dark.

13. A type of light-emitting diode based on organic polymers instead of semiconductor crystals.

14. The rate at which a CRT screen is repeatedly scanned to keep the image constantly visible.

 

Task 4.

Solve the clues by using terms. Complete the puzzle and find the hidden phrase.

 

                     
                     
                     
                     
                     
                     
                     
                     
                     
                     
                     

 

1. Screens with a low …… rate can produce eye fatigue.

2. Pictures which use a lot of pixels have high …….

3. Inside the tube there is an electron …… which scans the screen and turns on or off the pixels.

4. Some monitors have an anti-glare …… to reduce glare.

5. A monitor is also called a visual …… unit.

6. The …… on a CRT monitor is tiring on the eyes.

7. A video …… allows graphics to be displayed on your computer.

8. Characters and pictures are made up of dots, also called …….

9. This monitor has a 75 …… refresh rate.

10. Brightness and …… buttons let you alter the image.

 

Task 5.

Look through the text again and answer the questions.

1. How is the screen size measured?

2. What is the role of resolution?

3. What substance produces light and colour when hit by electrons in a CRT monitor?

4. Why are LCD monitors called flat screens?

5. What is the difference between LCD and CRT monitors? Why do LCDs replace CRTs?

6. Why is plasma screen popular with movie fans?

7. Where, in your opinion, can OLEDs be used?

8. What type of display do you have? Would you like to change it? Why?

 

Task 6.

Read again about display technologies and fill in the table.

Type of display Technology Advantages Disadvantages
LCD        
CRT        
OLED        
Plasma        

 

Task 7.

Complete this display screen specification.

1. ___________: 1280x768

2. ___________: 16: 9

3. ___________: 19”

4. ___________: 16.7 million

5. ___________: 400 cd/m2

 

Task 8.






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