Contextual reference

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

1. Because of their speed (1.12)

2. and some give options (I. 19)

3. The latter is an important feature (1.21)

4. The simplest of these are

monochromatic (I. 25)

5. that can be drawn (7. 28)

6. not only are they mechanical (/. 44)

7. This is because it (I. 48)

8. applications where relevant personal (I. 62)

9. is needed which can be corrected (I. 62)

10. which produce both print (/. 67)

Word forms

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

1. interaction, interact, interactive

a. CRT terminals are useful.............................. devices that allow

real-time processing.

b. Many................................ with computers do not require a

permanent record; therefore a printed output is unnecessary.

c. It is very important for students to............................... with

each other and exchange ideas.

2. restriction, restrict, restricted, restrictive, restrictively

a. Computer graphic applications are............................. by the

size of the screen.

b. A computer has no.............................. on the number of times

it can repeat a mathematical operation.

c. The computer centre introduced.............................. measures

to stop unauthorized persons from entering the computer room.

3. production, produce, produced, productive, productivity

a. Plotters are used to............................... permanent copies of

graphic output.

b. Dark characters on a bright background can
be................................ by certain screens.

c. Computers are used to control mechanical operations in the car
industry so as to increase...............................

4. development, develop, developed, developing, developer
a. In 1960, the second generation of computers was

5 Understanding words

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

1. distant (I. 2)

2. get (I. 47)

3. kind (I. 61)

4. ease (I 68)

5. scattered (I. 70)

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

6. extensive (I. 5)...............................

7. normal (I. 23)...............................

8. broken (I. 24)...............................

9. unlimited (I. 28)...............................

10. unable (/. 73)................................

b. The future will bring great................................ in the

mechanical devices associated with computer systems.

c.................................. the chip made it possible for

minicomputers and microcomputers to be invented.

5. registration, register, registered, registering

a. The................................ of the control unit temporarily holds

instructions read from memory while they are being executed.

b. New computer owners are.............................. with our

hardware company for one-year maintenance contracts.

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