Understanding words

Exercises

Main idea

Which statement best expresses the main idea of the text? Why did you eliminate the other choices?

1. Main storage is not a part of the processor.

2. The CPU is made up of the control unit, the arithmetic-logical unit and internal memory.

3. The CPU is composed of the arithmetic-logical unit and control unit only.

Understanding the passage

Decide whether the following statements are true or false (T/F) by referring to the information in the text.

T F 1. The central processing unit is made up of three components.

2. The CPU is responsible for all the activities taking place within a computer.

3. The processor itself has three components.

4. The control unit directs the flow of information within a processor.

5. The arithmetic-logical unit of the processor is responsible for the interpretation of program instructions.

6. The arithmetic-logical unit is also responsible for choosing and comparing the appropriate information within a program.

7. The processor cannot operate on any information if that information is not in main storage.

8. Secondary memory and internal memory are located in the same place in the computer system.

9. Only after the data has been processed by the CPU, results can be transmitted to an output device.

10. Computers can solve problems more quickly if they operate on new information.

Locating information

Find the passages in the text where the following ideas are expressed. Give the line references. 1. The processor is the control unit and the arithmetic-logical unit.

2. The processor operates on information that is in internal storage.

3. The CPU directs all the activities of the computer.

4. The control unit coordinates the sequencing of events within the processor.

5. The word «computer» usually refers to the CPU plus internal memory.

6. The CPU can get information from memory and put old or new information back into memory.

7. The arithmetic-logical unit does the calculations and decision-making operations.

Contextual reference

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

1. for their particular computer (l.6)

2. It determines which operations (l.9)

3. These two units are made up of (l.15)

4. that can be in one of two states (l.16)

5. that directs the sequence (l.20)

6. in which the actual arithmetic operations (l.25)

7. It also performs some kind of (l.27)

8. on which the control unit and the arithmetic-logical unit operate (l.30)

9. where manual control operations (l.34)

10. It is used mainly when the computer (l.36)

Understanding words

Refer back to the text and find synonyms, i.e. words with a similar meaning, for the following words:

1. specific (l.7)

2. decides (l.9)

3. job (l.18)

4. movement (l.22)

5. situated (l.31)

Now refer back to the text and find antonyms, i.e. words with an opposite meaning, for the following words:

6. exceptional (l.1)

7. generally (l.2)

8. not needed (l.26)

9. taken out (l.33)

10. shut down (l.37)

Word forms

Choose the appropriate form of the words to complete the sentences.

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