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1

For Examiner's Use Name the output devices A, B, C and D using the words from the list. B A C D CRT monitor Dot matrix printer Inkjet printer Motor Multimedia projector Plotter Speakers Trackerball A B C D

2. Input and output devices  →  2.3. Output devices and their uses

1. Types and components of computer systems  →  1.2. The main components of computer systems

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2

Ring two items which are storage media. Buzzer DVD RAM Keyboard Mouse Memory stick Sensor

3. Storage devices and media  →  3.2. Storage media

3. Storage devices and media  →  3.1. Storage devices

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3

Tick TRUE or FALSE next to each of these statements. TRUE FALSE Measuring software is used to write letters DTP software is used to create magazines PDAs cannot be used unless plugged in to an electricity socket Database software is used to create slide shows A working knowledge of HTML is helpful when creating web pages

15. Proofing  →  15.1. Software tools

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4

For Examiner's Use Complete each sentence below using one item from the list. A bar code reader A buzzer A dot matrix printer A graph plotter A graphics tablet An inkjet printer A pressure sensor OCR A trackerball A webcam is used to input a hand drawn image to the computer. is used to input data to a microprocessor controlled weighing scale. is an input device used by people with limited motor skills. is an output device used to produce large hard copies of car designs. is an output device used in microwave ovens.

2. Input and output devices  →  2.3. Output devices and their uses

2. Input and output devices  →  2.1. Input devices and their uses

1. Types and components of computer systems  →  1.2. The main components of computer systems

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5

Tick three appropriate features of spreadsheet software which make it suitable for creating and using computer models.
What ifs Queries Automatic recalculation Internet browsing Animation Data and formulae replication

20. Spreadsheets  →  20.1. Create a data model

1. Types and components of computer systems  →  1.1. Hardware and software

7. The systems life cycle  →  7.1. Analysis

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6

For Examiner's Use A student wishes to use floor turtle to draw this shape: Name and explain the meaning of three instructions that the turtle graphics software would need to contain in order to draw the shape. Instruction 1 Meaning Instruction 2 Meaning Instruction 3 Meaning

7. The systems life cycle  →  7.5. Documentation

14. Styles  →  14.1. Style management

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7

The Regionalisa Bank sends messages to its customers. Sometimes the messages are sent by fax and sometimes by email. Tick whether the following statements are TRUE or FALSE. TRUE FALSE A faxed message is more private An emailed message arrives with the customer more quickly A faxed document can be used for legal purposes An email attachment can be edited electronically

10. Communication  →  10.1. Communication with other ICT users using email

6. ICT applications  →  6.6. Banking applications

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8

For Examiner's Use Describe what real time processing is, using a microprocessor-controlled central heating system as an example.

7. The systems life cycle  →  7.1. Analysis

1. Types and components of computer systems  →  1.1. Hardware and software

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9

Car mechanics use expert systems to diagnose car faults. Describe how an expert system diagnoses these faults. Give two other uses of expert systems.

6. ICT applications  →  6.8. Expert systems

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10

For Examiner's Use 10 The manager of a supermarket uses a database to store data about the food he sells. This is part of the database. Food type Number in stock Re-order (Y/N) Last order received Potato flakes N 23/10/10 Chocolate bar N 25/10/10 Beefburgers N 24/10/10 Gravy Y 17/10/10 For each of the following fields describe an appropriate validation check. You must describe three different validation checks. Number in stock Re-order (Y/N) Last order received

7. The systems life cycle  →  7.2. Design

15. Proofing  →  15.1. Software tools

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11

Draw four lines on the diagram to match the use to its most appropriate input method. Use Input method To input text from a printed document Bar code reader To input data from a bank cheque Chip reader To input data from a bank card MICR To input data about a product at a POS OCR

7. The systems life cycle  →  7.2. Design

2. Input and output devices  →  2.2. Direct data entry and associated devices

2. Input and output devices  →  2.1. Input devices and their uses

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12

For Examiner's Use 12 The manager of a company wants to improve the security of the computer network. She has decided to use authentication techniques so that employees can identify themselves to the system. Name three authentication techniques and describe how each technique would help keep the data more secure. Technique 1 Technique 2 Technique 3

8. Safety and security  →  8.3. Security of data

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13

The prolonged use of computers can lead to health and safety problems. List two health problems that may be caused by the prolonged use of computers. List two safety problems that may be caused by the use of computers.

5. The effects of using IT  →  5.2. Potential health problems related to the prolonged use of IT equipment

1. Types and components of computer systems  →  1.4. Types of computer

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14

For Examiner's Use 14 A group of international schools wish to hold a video conference instead of a face to face meeting. Discuss the advantages and disadvantages to a school of using video conferences. Advantage 1 Advantage 2 Advantage 3 Disadvantage 1 Disadvantage 2 Disadvantage 3

4. Networks and the effects of using them  →  4.2. Network issues and communication

7. The systems life cycle  →  7.1. Analysis

10. Communication  →  10.2. Effective use of the internet

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15

Joseph wants to type in details of new customers into a database. He needs to design an on-screen input form. Describe four navigation aids that would be part of a well designed on-screen input form.

18. Databases  →  18.1. Create a database structure

2. Input and output devices  →  2.1. Input devices and their uses

7. The systems life cycle  →  7.2. Design

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16

For Examiner's Use 16 A company is developing a new computer system. After the new system is developed, it will be implemented. Name two methods of implementation. Give one advantage and one disadvantage of each. Method 1 Advantage Disadvantage Method 2 Advantage Disadvantage After the system is implemented it will be evaluated. Identify three activities which would need to be carried out in evaluating the system.

7. The systems life cycle  →  7.1. Analysis

7. The systems life cycle  →  7.6. Evaluation

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17

For Examiner's Use 17 There are many microprocessor-controlled devices in the modern home. Describe the effects of these devices on people’s lifestyles.

5. The effects of using IT  →  5.1. Microprocessor-controlled devices

5. The effects of using IT  →  5.2. Potential health problems related to the prolonged use of IT equipment

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18

For Examiner's Use 18 A computer-controlled greenhouse is used by a school in a country with a cold climate. Tick three sensors which would have to be used in the greenhouse.
Pressure sensor Movement sensor Light sensor Temperature sensor Moisture sensor Infra red sensor Explain why computers are unable to read the data directly from these sensors. Describe how the microprocessor uses data from the sensors to control the greenhouse.

7. The systems life cycle  →  7.1. Analysis

1. Types and components of computer systems  →  1.1. Hardware and software

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19

For Examiner's Use 19 A number of people use methods to defraud online bank customers. Name and describe two of these methods.

8. Safety and security  →  8.3. Security of data

6. ICT applications  →  6.6. Banking applications

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20

Mobile telephones are used for accessing the internet. Give two advantages and two disadvantages of using a mobile telephone rather than using a PC to access the internet. Advantage 1 Advantage 2 Disadvantage 1 Disadvantage 2

10. Communication  →  10.2. Effective use of the internet

6. ICT applications  →  6.9. Computers in the retail industry

6. ICT applications  →  6.1. Communication

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