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1

For Examiner's Use Name the devices A, B, C and D using the words from the list. A B C D bar code reader dot matrix printer joystick laser printer microphone scanner speakers trackerball A B C D

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

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

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

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2

Ring two network devices. hub CD ROM graph plotter magnetic disc router trackerball

4. Networks and the effects of using them  →  4.1. Networks

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

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3

Tick True or False next to each of these statements. True False A network card is an example of hardware. A light sensor is an example of software. Icons are part of a Graphical User Interface. A magnetic tape has a greater storage capacity than a CD. Laser printers are quieter than a dot matrix printer.

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

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4

For Examiner's Use Draw five lines on the diagram to match the input device to its most appropriate use. Input Device Use Remote control to input data at a POS Electronic scales playing a video game Joystick inputting text so it can be processed by a software package Optical Character Reader an input device in a burglar alarm system Sound sensor to operate a multimedia projector

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 True or False for the following statements. True False A magnetic tape has faster data access than a DVD ROM. A CD is used to store a two hour high definition movie. A magnetic disc is used for online processing. Pen drives are used to copy data from one computer to another.

3. Storage devices and media  →  3.2. Storage media

3. Storage devices and media  →  3.1. Storage devices

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6

For Examiner's Use A floor turtle can use the following instructions: INSTRUCTION MEANING FORWARD n Move n mm forward BACKWARD n Move n mm backward LEFT t Turn left t degrees RIGHT t Turn right t degrees PENUP Lift the pen PENDOWN Lower the pen REPEAT n Repeat the following instructions n times END REPEAT Finish the REPEAT loop Start Finish NOT TO SCALE Complete the set of instructions to draw this shape by filling in the blank lines. Do not use additional lines. PENDOWN LEFT FORWARD REPEAT

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7

For Examiner's Use Multi-national companies often use video conferencing instead of face-to-face meetings. Tick three advantages of video conferencing.
Companies do not have to buy any equipment Companies can arrange the meeting for any time of day It is safer as employees do not have to travel Companies do not have to pay hotel expenses Employees don’t have to carry so many documents with them Employees are paid less Tick three disadvantages of video conferencing.
Video conferences can only last a short time Employees are unable to see who they are talking to It is difficult to call international meetings because of time differences There is sometimes a time lag between video and sound It is difficult to share documents Legal documents may need to be signed

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

7. The systems life cycle  →  7.1. Analysis

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8

There are many health risks associated with the use of computers. Tick three of these risks.
Electrocution from touching bare wires Fire from overheating of equipment Fire from overloading of sockets Neck pain due to bad positioning of the screen RSI due to continuous typing Sight problems from staring at the screen continuously

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

8. Safety and security  →  8.1. Physical safety

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9

For Examiner's Use Describe what is meant by hacking, including ways that a hacker can misuse data held on a computer. Describe two methods which would help prevent hackers accessing a computer network.

8. Safety and security  →  8.3. Security of data

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

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10

For Examiner's Use 10 Many people now use internet shopping sites. Apart from not having to travel, give three benefits to the customer of internet shopping. Apart from data security give three drawbacks to the customer of internet shopping.

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

10. Communication  →  10.2. Effective use of the internet

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11

For Examiner's Use 11 Explain why information found on websites is not always reliable and describe how the reliability of the information can be evaluated.

10. Communication  →  10.2. Effective use of the internet

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12

Chad has developed a new computer system. He now needs to implement it. He has decided against using phased implementation. Name and describe three other methods which could be used to implement a new system.

7. The systems life cycle  →  7.1. Analysis

7. The systems life cycle  →  7.4. Implementation

7. The systems life cycle  →  7.3. Development and testing

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13

For Examiner's Use 13 Computers are used in supermarkets at checkouts. Identify three output devices which could be used when an item is purchased. When paying for goods the customer uses a bank card. Identify the input device which will be used to directly input data from the card. Describe the processing which takes place during an electronic funds transfer. Include reasons why the card might be rejected.

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

6. ICT applications  →  6.6. Banking applications

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14

For Examiner's Use 14 Describe what phishing is and explain its purpose.

8. Safety and security  →  8.3. Security of data

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15

Paul owns a shop. He has employed Jean, a systems analyst, to write software for a new database system to store data about the CDs he sells. Jean wrote down three of the questions that customers might ask which Paul might need to find the answers to quickly: Have you got the CD recorded by the artist ‘Bett Lyryx’ in 2008? How much does the CD called ‘Let It Be’ cost? How many tracks are on the CD? Complete the data dictionary table below giving the field names which would be used in the database and identify the data types needed to answer these questions. Field name Data type Artist_name text text For Examiner's Use No CD lasts for longer than 90 minutes or is shorter than 20 minutes. Paul wants to add a field to the database to include this data. He will use test data on this field. Name three types of test data, giving an example of the data which would be used. Type 1 Example 1 Type 2 Example 2 Type 3 Example 3 When the system is implemented, documentation will be provided. Tick four items that would be included in the technical documentation but not in the user documentation.
purpose of the system limitations of the system program coding system flowcharts hardware and software requirements file structures list of variables frequently asked questions

7. The systems life cycle  →  7.2. Design

18. Databases  →  18.1. Create a database structure

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16

For Examiner's Use 16 Libraries make use of both batch processing and online processing. Describe the differences between these types of processing giving examples of situations where each would be used in a library.

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

7. The systems life cycle  →  7.1. Analysis

7. The systems life cycle  →  7.6. Evaluation

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