Contextual reference

Look back at the text and find out what the words in bold typeface refer to.

1. It is two dimensional (1:2)..............................

2. they have definite ideas (/. 6)..............................

3. after seeing it there (I. 7)..............................

4. it is hammered (I. 22)................................

5. each being on an individual arm (I. 35)................................

6. which, when energized (7. 42).................................

7. that make up the words (7. 62).................................

8. which consists of layers (1.86)................................

9. than paper, which, in addition (7. 89).................................

10. a special viewer to read it (7. 93).................................

Understanding words

Refer back to the text and find synonyms for the following words.

1. hitting (I. 17)...........................

2. correct or suitable (I. 22)...........................

3. draws to or pulls towards (I. 80)...........................

4. at the same time (/. 82)............................

5. disadvantage (/. 91)............................

Now refer back to the text and find antonyms for the following words.

6. simple (/. 10)............................

7. temporary (I. 12)...........................

8. non-impact (7. 18).............................

9. unreliable (7. 38).............................

10. hide (I. 74)...........................

Word forms

First choose the appropriate form of the words to complete the sentences. Then check the differences of meaning in your dictionary.

1. appearance, appear, appearing

a. The first real calculating machine............................. in 1820

as the result of several people's experiments.

b. The................................ of new microcomputer systems on the

market has increased the competition, forcing the prices down.

2. rotation, rotate, rotating, rotator

a. When a line printer is in print mode, the cylinder with the
characters starts.................................

b. The plotter................................ to allow drawing circular

designs.

c. The daisy wheel printer uses a wheel with up to 100 characters,

each being on an individual arm, so that only..........................

is needed for printing.

3. revolution, revolve, revolved, revolving

a. Certain impact printers have cylinders with the characters set on
them which............................... in order to print a line.

b. In this process, one complete line of characters is printed during
one............................... of the cylinder.

c. The entrance of the new computer centre has a
door.

4. installation, instalment, install, installing

_a a computer in a company is the work of

technicians and engineers.

b. Our technicians helped.............................. a microcomputer

system in the language school.

c. The computer............................... at the University has an

IBM-370 and many peripherals.

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