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Comprehension check

  1. Complete the sentences.

  1. As computer systems become more intelligent, they are used in …

  2. The main aim of police speed traps is …

  3. A small processor calculates …

  4. The details are stored on …

  5. When the smart card is taken back to the police station …

  6. DVLC database is …

  7. “Surfing” is prevented by …

  8. To calculate the speed of the vehicle the computer uses …

  9. Standard letters are addressed to …

  10. Computer systems can be used in large supermarkets, e.g. for …

  11. A barcode is …

  12. When a checkout operator moves the barcode label across the scanner …

  13. The branch computer checks …

  14. The item and the price are shown …

  15. Computers are also used to provide …

  1. Match up the words and abbreviations in column A with their explanations in column B.

    A

    B

    1. database

    a) European Article Number

    2. OCR software

    b) equipment which is used to bounce radio waves off the moving car

    3. mailmerge

    c) Driver and Vehicle Licensing Centre

    4. radar

    d) a type of applications program used for storing information so that it can be easily searched and sorted

    5. EAN

    e) a wordprocessing feature that produces a separate standard letter containing details obtained from each record in a database

    6. smart card

    f) a standard set of vertical bars of varying thickness used to identify products

    7. barcode

    g) automatic teller machine – the type of machine used by banks for enabling customers to withdraw money from their bank accounts

    8. ATM

    h) optical character recognition software that changes picture images of letters and numbers into digital form for use by a computer system

    9. download

    i) copy from the computer to a server computer

    10. DVLC

    j) a plastic card with a built-in computer system that can store large amounts of data

  2. Make up questions for these answers.

  1. Computer systems are used in hospitals, airports, police stations, at home.

  2. Speed traps are used to catch drivers that are breaking the official speed limit.

  3. The new speed trap prevents “surfing” by using two computerized units with digital cameras placed at a fixed distance apart.

  4. EPOS tills are for financial calculations and stock control.

  5. Each item on a supermarket shelf has a barcode label with a barcode.

  6. Yes. The item and the price of the item can be identified.

  7. ATM is a type of machine, which helps customers to withdraw money from their bank accounts.

  1. Answer the questions and give reasons for your answers.

  1. Do computer systems become more intelligent?

  2. What is more preferable to use: radar equipment or microprocessor in police speed traps?

  3. How does new system prevent “surfing”?

  4. Why is it useful for each item on a supermarket shelf to have a barcode label with a barcode?

  5. In what way do we identify the item and the price of the item?

  6. Is it easy to withdraw money from a bank account with the help of a bank card?

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