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15. Put the verbs in brackets into the required tense form of Active or Passive Voice.

1 The entered data can _______ (to transmit) by communications networks.

2 The possibility of error _______ (to reduce) if data _______ correctly (to put) into the data processing system.

3 As soon as data ______ (to enter) into the system correctly, the human manipulation _______ (to limit).

4 Computer systems _______ (to be) vulnerable to the entry of invalid data.

5 Computers finally _______ (to enter) the wider world 1951 with the invention of first UNIVAC-I

6 A range of modern computers _______ (to house) in the travel reservation Centre.

7 Vast amount of information _______ (store) now on magnetic discs.

16. Translate the given sentences form Active into Passive Voice.

1 We process data to become useful information.

2 Computers replace people in dull routine work.

3 Computer-controlled robots increased the productivity of industry.

4 The cost per character of data stored is decreasing.

5 The computer gave the information in a few seconds.

6 With the help of computers we will better overcome the difficulties of our everyday life.

7 While the experiment the computer was doing the job effectively.

Answer the questions, using the information of the text.

1. What capabilities should data-processing systems combine when designed?

2. What are the main advantages of computers?

3. What do you know of computer accuracy?

4. What is the function of communication networks?

5. Give examples of data communication network.

6. What do you understand by capacity storage?

7. What other values of computer data processing do you know?

8. What is an important objective in the design of computer data processing systems?

9. What is the most effective computer data processing system?

10. What is the best way of responding to the challenges and opportunities of our post-industrial society?

Fill in the right variant of your answer:

1.Computer data _______ system frees human from routine error-prone tasks.

a) counting; b)computing; c)processing.

2.Computers can store vast amount of information to organize it and _______ it.

a) to travel; b)to retrieve; c) to respond.

3.The entered data can be transmitted by _______ networks.

a) communications; b)conversations; c)procession.

4.The possibility of _______ is reduced if data were correctly put into the data processing system.

a) character; b)access; c)error.

5.Computer data processing systems can _______ at a fraction of a second.

a) receive; b)respond; c)retrieve.

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