INFORMATION TECHNOLOGY 0418/01 - · PDF fileINFORMATION TECHNOLOGY 0418/01 Paper 1 ... UCLES 2005 Specimen Paper 0418/01 6 A floor turtle can use the following instructions: INSTRUCTION

UNIVERSITY OF CAMBRIDGE LOCAL EXAMINATIONS SYNDICATE

International General Certificate of Secondary Education

INFORMATION TECHNOLOGY 0418/01

Paper 1 Specimen Paper 2006

2 Hours Candidates answer on the Question Paper. No additional materials are required.

READ THESE INSTRUCTIONS FIRST Write in dark blue or black pen in the spaces provided on the Question Paper. You may use a soft pencil for any diagrams, graphs, music or rough working. Do not use staples, paper clips, highlighters, glue or correction fluid. Answer all questions. At the end of the examination, fasten all your work securely together. The number of marks is given in brackets [ ] at the end of each question or part question.

This document consists of 19 printed pages and 2 blank pages.

! UCLES 2005

[Turn over

2

! UCLES 2005 Specimen Paper 0418/01

1 Name the objects A, B, C, D and E using the words from the list.

A

B

C

D E

CD ROM Drive Joystick Keyboard Microphone

Midi interface Monitor Mouse Plotter

Processor Printer Speaker Web cam A B

C D

E

[5]

2 Ring two output devices.

joystick plotter pressure sensor scanner printer bar code reader

[2]

3

3 Draw five lines on the diagram to match the hardware to where it would be used.

Hardware Use

Bar code reader in a car designer’s office Graphics tablet in a bank for reading cheques Joystick at a point of sales terminal Magnetic Ink Character reader in a computer controlled greenhouse Temperature sensor in a flight simulator

[5]

4 Give three ways you can prevent other students from reading work you have saved on a computer.

Way 1

Way 2

Way 3

[3]

5 Tick whether the following are magnetic or optical media.

Magnetic Optical

Jaz disk

DVD

Compact disc

Zip disc

[4]

! UCLES 2005 Specimen Paper 0418/01 [Turn over

4


6 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

50 50 Start 250

Complete the set of instructions to draw these shapes by filling in the blank lines. PEN DOWN

LEFT 90

REPEAT

FORWARD

45

END REPEAT

[5]

5

7 A systems analyst has been asked to look at the possibility of computerising a video shop’s record keeping.

(a) Describe two ways of carrying out research into the existing system.

1

2

[2] (b) After analyzing the existing system the systems analyst will design the computerized

system. Give three items that the systems analyst will need to produce as part of the design.

1

2

3

[3] 8 Tick two applications which use batch processing and two which use on-line processing.

Batch On-line

Booking a flight at a travel agent.

Producing gas bills.

Using EFTPOS in a supermarket.

Reading data from bank cheques.

[4]


6


9 Name each type of network

(a) (b)

(c)

[3] 10 Give three items that should be included in the user documentation of a computer program.

1

2

3

[3]

7

11 A property owner uses a database to store data about houses he sells. This is part of the database.

Reference Number Air conditioning Garden Number of Bedrooms Price ( )

L2132 Y N 3 170000

L4323 N Y 2 130000

L1232 N Y 3 158000

L4321 N N 4 210000

L5643 Y Y 4 335000

L3423 N Y 5 400000

L2342 Y Y 4 285000

(a) The records shown are to be sorted in ascending order of price. What will be the reference number of the first record in the database after it has been

sorted?

[1]

(b) Give the name of a field that contains a Boolean data type.

[1]

(c) Identity the field type of the ‘reference number’ field.

[1]

(d) Give two validation checks that could be carried out on the ‘reference number' field.

1

2

[2]


8

(e) When new data is added to the database it has to be verified. Give two ways that this new data could be verified.

1

2

[2]


9

12 Complete the sentences using words from the list below.

(a) Bank cheques are read using

(b) Many items can be accessed from a magnetic tape one after the other. This is called

access.

(c) A software package which allows a computer to automatically manufacture goods

from drawings is called

serial CAD/CAM MICR [3] 13 RAM and ROM are types of storage (a) Give the major difference between RAM and ROM.

[2] (b) Give one way a computer uses RAM.

[1] 14 Tick whether the following statements are TRUE or FALSE.

TRUE

!

FALSE

!

Regular use of computers can cause back strain

Multimedia presentations cannot contain sound

A buzzer is an output device

Digital cameras use flash memory

[4]


10

15 The table shows part of a spreadsheet.

A B C D E F

1 Item Number Number sold Cost price Selling price Profit Profit

2 per week per item per week

3

4 L1257 124 £44.00 £49.99 £5.99 £742.76

5 L1587 99 £39.00 £43.99 £4.99 £494.01

6 L3412 27 £24.50 £31.99 £7.49 £202.23

7 L2891 31 £22.00 £29.99 £7.99 £247.69

8

9 Total profit per week £1,686.69

(a) Ring one cell on the spreadsheet that contains text. [1] (b) Give the cell reference that contains 27.

[1] (c) How many rows are shown in the spreadsheet?

[1] (d) Give a cell reference for a cell that is centred.

[1] (e) Write down the formula which should be in F9.

[1] 16 Describe three ways that personal data held on a computer could be misused

1

2

3

[3]


11

17 Pupil records and school accounts are kept on a computer in the office of the school secretary. (a) Select from the list one item of hardware and two items of software that are required.

CAD

floppy disc database data logger

Graphics package hard disc spreadsheet

Hardware

Software

Software

[3] (b) Give two occasions when a pupil’s record will need to be altered.

1

2

[2] (c) The school is considering extending the system so that letters could be sent home to

parents using the details that are stored on the computer. Name the process which would be used and the additional type of software they would need.

Process

Software

[2]


12

18 A school’s website contains details of homework set by teachers. Students can use their computers at home to do their homework and post their answers back to the school using e-mail.

(a) Describe two advantages to students using this method.

1

2

[2] (b) Describe two problems which might arise from the student using the Internet at home.

1

2

[2]


13

19 A school weather station is to be computerised. (a) Analogue temperature and moisture sensors will be used. Explain why computers are

unable to read data directly from these sensors.

[2] (b) What device is needed to enable the computer to read the data?

[1] (c) Give two advantages of using a computer to collect the data rather than having it done by

humans.

1

2

[2]


14


20 Jasbinder Sidhu owns a number of video rental shops around the country. He is planning to keep details of each member’s records on a computer database.

New members will fill in an application form and the manager will write the new member’s membership number on the form.

All the details will then be typed from the application form onto a screen input form. The details of any videos being borrowed will also be added.

Design a screen input form which the manager could use for typing in the new member’s details.

[5]

15

21 A customer in a bookshop buys a book using a debit card. Information about the book and the customer’s bank account is input using the shop’s EFTPOS

terminal. Checks are made on this input data. (a) Describe how the details of a book are input and describe a check which is performed on this

input.

[2] (b) Describe how the details of the customer’s bank account are input and describe two checks

that are performed on this input.

[3]


16

22 Computers are used to model situations such as a flight or driving simulation. (a) Give one other situation where computer models are used.

[1] (b) Give two reasons why computer models are used rather than the real thing.

1

2

[2]


17

23 A small company is ready to computerise its operations. A systems analyst has designed a new system and is ready to implement it.

(a) Describe three methods by which the new system could be implemented.

1

2

3

[3] (b) During the implementation phase testing will need to be carried out. Describe the three

different types of test data which would be used.

1

2

3

[3] (c) Describe three items that would need to be included in an evaluation of the system.

1

2

3

[3]


18

24 Doctors are increasingly using expert systems to help with their diagnoses of patient illnesses. (a) Describe how this type of expert system would be created.

[4] (b) Name two other applications which involve the use of expert systems.

1

2

[2] 25 A company sells books over the Internet. It keeps a database of all its books and customers. The

personal data of the customers is encrypted. (a) What is meant by encryption?

[2] (b) Explain why encryption is needed.

[2]


19

26 Many people are now doing their shopping by using the Internet. Describe the advantages and the disadvantages to the supermarkets and the customer arising from these developments.

[8]


20

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21

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Every reasonable effort has been made to trace all copyright holders. The publishers would be pleased to hear from anyone whose rights we have unwittingly infringed. University of Cambridge International Examinations is part of the University of Cambridge Local Examinations Syndicate (UCLES), which is itself a department of the University of Cambridge.


Centre Number Candidate Number Name

UNIVERSITY OF CAMBRIDGE INTERNATIONAL EXAMINATIONS International General Certificate of Secondary Education INFORMATION TECHNOLOGY

0418/01 Paper 1 May/June 2006 Candidates answer on the Question Paper. 2 hours No Additional Materials are required.


IB06 06_0418_01/5RP

! UCLES 2006 [Turn over

READ THESE INSTRUCTIONS FIRST Write your Centre number, candidate number and name on all the work you hand in.

Write in dark blue or black pen.

You may use a soft pencil for any diagrams, graphs, or rough working.

Do not use staples, paper clips, highlighters, glue or correction fluid.

Answer all questions.

At the end of the examination, fasten all your work securely together.

The number of marks is given in brackets [ ] at the end of each question or part question. For Examiner’s Use

2

© UCLES 2006 0418/01/M/J/06

For

Examiner's

Use


256 Mb

A B C

D E

Bar code reader CD ROM drive Digital camera Floppy disc

Joystick Keyboard Memory stick Modem

Mouse Printer Scanner Web cam

A

B

C

D

E

[5]

2 Ring two input devices.

Bar code reader Joystick Monitor

Plotter Printer Speaker

[2]

3

© UCLES 2006 0418/01/M/J/06 [Turn over

For

Examiner's

Use

3 Draw five lines on the diagram to match the software to how it would be used.

Software

Use

Control program

typing letters

Database

automatic washing machine

Measuring program

storing records of books in a library

Search engine

monitoring rainfall in a weather station

Word processor

doing research on the Internet

[5]

4 Documentation is produced for a new database system. Tick whether the following are

found in the Evaluation or the Implementation section.

Evaluation Implementation

Identifying any necessary improvements to the system

Running the new system

Testing the new system

Comparing the solution with the original task

requirements

[4]

5 Tick three items of hardware that would be used to make a purchase using Electronic

Funds Transfer.

!

Magnetic Stripe reader

Mouse

Optical character reader

Digital camera

Keypad

Bar code reader

[3]

4

© UCLES 2006 0418/01/M/J/06

For

Examiner's

Use


INSTRUCTION MEANING





PENUP Lift the pen




Complete the set of instructions to draw these shapes by filling in the blank lines.

50 60

start finish

120

[5]

PEN DOWN

LEFT 90

REPEAT

FORWARD

60

FORWARD

LEFT 90

END REPEAT

5


For

Examiner's

Use

7 A systems analyst has designed a new computer system for a large company.

(a) Name three methods of implementing this new system and for each one describe an

advantage of using that method.

Method 1

Method 2

Method 3

[6]

6

© UCLES 2006 0418/01/M/J/06

For

Examiner's

Use

(b) Before the system is implemented it has to be tested. One of the tests will be to check

that the company does not pay a worker more than $500 a week. Use examples of

workers’ pay to explain what is meant by normal test data, abnormal test data and

extreme test data.

[6]

(c) Once the system has been tested and implemented, the systems analyst will complete

the technical documentation. Name three items that should be included in technical

documentation.

1

2

3

[3]

7


For

Examiner's

Use

8 Describe the differences between ROM and RAM and explain what they are used for.

[3]

9 Draw lines in the following diagrams to show:

(a) A star network (b) A ring network

[2]

8

© UCLES 2006 0418/01/M/J/06

For

Examiner's

Use

10 Computers are now widely used in libraries.

This is part of the database of books in the library.

Code number Title Name of Author

Paperback

or

Hardback

Borrower

number

Date due

back

780140082043 The Great Gatsby F Scott Fitzgerald P 15234 1 Jun 06

780670865284 Jane Austen – A life Claire Tomalin H 11356 2 Jun 06

781856134033 Harry Potter and the

Philosopher’s Stone J K Rowling H 16582 26 May 06

780590660549 Northern Lights Philip Pullman P 12982 28 May 06

This is part of the database of borrowers.

Borrower

number Name of borrower Address of borrower

Borrower phone

number

11356 Tobias Ahendra 658, Uhuru Highway, Box 2809 72 34 45 67

16582 Carlos Moyes 12, Avenue de Lupin, Box 65432 24 17 39 81

(a) The data files are stored on a hard disc. State the type of access needed to retrieve a

single record quickly.

[1]

(b) The records in the book file are to be sorted in descending order of code number. What

will be the title of the book in the first record in the database of books after it has been

sorted?

[1]

(c) When a book is borrowed the borrower presents the book and his card to the librarian.

Name an input device, other than a keypad, which would be most suitable for entering

the details from the borrower and the book.

Borrower

Book [2]

(d) Give two reasons why these methods are better than typing the number in.

1

2 [2]

9


For

Examiner's

Use

(e) Give two validation checks that could be carried out on the code number field.

1

2

[2]

(f) Name a field that contains a Boolean data type.

[1]

(g) Identify the data type used in the borrower phone number field.

[1]

(h) Write down the field in the database of books which should be used as the key field.

[1]

(i) The date is 27th

May 2006. Using the example files given above, describe how the

computer will automatically identify overdue books and send out letters to these

borrowers.

[5]

10

© UCLES 2006 0418/01/M/J/06

For

Examiner's

Use

11 Tick two applications which use on-line processing.

Booking a flight using a computerised booking system.

Producing electricity bills.

Processing a payroll.

Withdrawing money from a cash machine.


[2]

12 A car showroom owner uses a spreadsheet to store data about cars he sells. This table

shows part of the spreadsheet.

A B C D E

1 Registration Previous Buying Selling Profit

2 Number Owners Price Price

3

4 KUP 315 1 £3900 £4400 £500

5 ZAS 546 2 £3500 £3900 £400

6 TRU 234 1 £2700 £3450 £750

7 RWA 456 4 £1950 £2200 £250

8

9

(a) Ring one cell on the spreadsheet that contains numeric data. [1]

(b) How many columns are there in this part of the spreadsheet?

[1]

(c) Write down the formula which should be in cell E4.

[1]

(d) What type of alignment is being used in cell B4?

[1]

(e) The owner of the car showroom wants to calculate the total profit of these four cars.

What formula should he type in cell E9?

[1]

11


For

Examiner's

Use

13 A new year of pupils has just started at school. The school secretary has to type in all the

new pupils’ names and details into a database. The data will be used to contact parents as

well as keep the personal details of each pupil such as medical information.

(a) Design a screen input form which could be used for typing in the details of one pupil.

[5]

(b) After designing the screen input form, a systems analyst would design the file structure.

Give three items which would need to be designed as part of the file structure.

1

2

3 [3]

12

© UCLES 2006 0418/01/M/J/06

For

Examiner's

Use

(c) Hackers are sometimes able to access data. Describe two ways in which pupils could

be affected.

1

2

[2]

(d) Give three ways that the secretary could prevent any unauthorized people from reading

the information that has been saved.

1

2

3

[3]


(a) Pupil multiple choice exam answers are read using

(b) The magnetic medium which uses direct access is called

(c) People can send messages to each other electronically using [3]

OMR CAD/CAM a disc

a tape e-mail

13


For

Examiner's

Use

15 Tick whether the following statements are TRUE or FALSE

TRUE

!

FALSE

!

Regular typing on a keyboard can cause RSI

Dot matrix printers give better quality output than Laser printers

A sensor is an output device

Floppy discs hold more data than a memory stick

[4]

14

© UCLES 2006 0418/01/M/J/06

For

Examiner's

Use

16 The biology department in a school in Europe is planning to grow plants to sell for charity.

They have to computerise their greenhouse. This will cost a lot of money. The pupils have

worked out that by selling the plants they will get enough money to pay for the equipment

and make a profit which will be given to charity.

(a) To persuade the head teacher they are going to produce a word-processed report

which will contain pictures of the plants they want to grow. It will also contain some of

the figures from the spreadsheet below.

A B C D E F G H

1 All Prices are per 100

plants

2

Cost of

seed

Cost of

pots

Cost of

soil

Selling

price

3 Geranium ! 3 ! 55 ! 3 ! 99 heating costs ! 120.00

4 Lavender ! 5 ! 70 ! 3 ! 399 water costs ! 80.00

5 Poppy ! 3 ! 60 ! 3 ! 399 equipment costs ! 325.00

6

7 Totals ! 11 ! 185 ! 9 ! 897 ! 525.00

8

9 Total profit ! 167

Describe how the pupils will create their report combining text, the data from the

spreadsheet and pictures of the plants.

[5]

15


For

Examiner's

Use

(b) They will use a computer to monitor and control the growing conditions.

In the greenhouse they will have a light, a heater, a fan, a tap to water the plants and

some windows which can be opened.

Name two sensors, apart from a temperature sensor that they will need to attach to the

computer to monitor the growing conditions.

1

2 [2]

(c) Explain why computers are unable to read the data directly from these sensors.

[2]

(d) What device is needed to enable the computer to read the data?

[1]

(e) Give two advantages of using a computer to control the greenhouse rather than having

it done by humans.

1

2

[2]

16

© UCLES 2006 0418/01/M/J/06

For

Examiner's

Use

(f) Describe how the computer will control the temperature of the greenhouse. You will

need to describe the input, the processing and the outputs of the system.

[5]

17 Computers are often used to model situations.

(a) Give two situations where computer models are used to avoid causing danger to the

user.

1

2 [2]

(b) Give two reasons, other than preventing danger to the user, why computer models are

used rather than the real thing.

1

2

[2]

17


For

Examiner's

Use

18 An expert system is used to help diagnose car engine faults. Describe the inputs, outputs

and processing involved in such a system.

[4]

18

© UCLES 2006 0418/01/M/J/06

For

Examiner's

Use

19 Many people are now banking using the Internet. Describe the advantages and the

disadvantages to the banks and the customer arising from these developments.

[8]

19

0418/01/M/J/06

BLANK PAGE

20

Permission to reproduce items where third-party owned material protected by copyright is included has been sought and cleared where possible. Every

reasonable effort has been made by the publisher (UCLES) to trace copyright holders, but if any items requiring clearance have unwittingly been included, the

publisher will be pleased to make amends at the earliest possible opportunity. University of Cambridge International Examinations is part of the University of Cambridge Local Examinations Syndicate (UCLES), which is itself a department

of the University of Cambridge.

0418/01/M/J/06

BLANK PAGE

Centre Number Candidate Number Name

UNIVERSITY OF CAMBRIDGE INTERNATIONAL EXAMINATIONS



Paper 1

October/November 2006

2 hours

Candidates answer on the Question Paper.

No Additional Materials are required.

READ THESE INSTRUCTIONS FIRST

Write your Centre number, candidate number and name on all the work you hand in.


You may use a soft pencil for any diagrams, graphs or rough working.




The number of marks is given in brackets [ ] at the end of each question or part question.

For Examiner’s Use


IB06 11_0418_01/4RP

© UCLES 2006

[Turn over

2

© UCLES 2006 0418/01/O/N/06

For

Examiner's

Use

1 Name the items A, B, C, D and E using the words from the list.

A

ED

B C

Bar code reader Desktop computer Digital camera Joystick

Joystick Inkjet printer Laptop computer Memory stick

Monitor Scanner Speakers Web cam

A

B

C

D

E

[5]

2 Name two media which are used to store many megabytes of data.

Memory stick Magnetic stripe Hard disc

Bar code Floppy disc Temperature sensor

[2]

3

© UCLES 2006 0418/01/O/N/06 [Turn over

For

Examiner's

Use

3 Tick whether the following statements are true or false.

True False

OMR is used in a bank for reading cheques

Bar code readers are used at point of sales terminals

Sensors are used in a computerised weather station

Cash machines use on-line processing

[4]

4 Draw five lines on the diagram to match the hardware to what it would be used for.

Hardware

Use

Optical mark reader

printing out car designs

Plotter

reading information from credit cards

Magnetic stripe reader

choosing from a set of options

Touch screen

making backup copies of data

Zip drive

reading information from students’ exam

answers

[5]

5 A local football club wants to use a computer to store all its members’ records. It wants to

keep the club accounts as well as send letters to its members. Tick the three types of

software it will need.

!

Presentation software

Measurement software

Database software

Spreadsheet software

Word processing software

Control software

[3]

4

© UCLES 2006 0418/01/O/N/06

For

Examiner's

Use


(a) Text is read from a document directly into a computer using

(b) One item can be accessed from a magnetic disk without reading all the preceding

items. This is called access.

(c) An item of hardware which is connected to a computer so that it can read data such as

temperatures is called a

direct sensor OCR

MICR serial

[3]

7 (a) Name each type of network

(ii)(i)

(i)

(ii)

[2]

(b) Circle the type of network that does not need to have a modem.

Local Area Network Wide Area Network

[1]

5


For

Examiner's

Use


INSTRUCTION MEANING





PENUP Lift the pen





50

25

2520

20

5

start finish

[5]

PEN DOWN

LEFT 90

FORWARD

RIGHT

6

© UCLES 2006 0418/01/O/N/06

For

Examiner's

Use

9 The owner of several mobile phone shops wants to computerise the records of the stock

and customers. The systems analyst will need to find out how the existing systems work.

She will need to find out how records of phones and customers are kept at the moment.

(a) There are four ways she could find out this information. Describe in detail two of these

ways.

1

2

[4]

(b) After analysing the existing system the systems analyst will design a database

consisting of the customer file and the stock file. Apart from the structure of these files,

describe four items that the systems analyst will need to design for the database.

1

2

3

4

[4]

7


For

Examiner's

Use

10 Using examples, describe each of these two terms.

On-line processing.

Batch processing.

[4]

11 RAM and ROM are types of storage.

(a) Explain the major difference between RAM and ROM.

[2]

(b) Give one way a computer uses ROM.

[1]

8

© UCLES 2006 0418/01/O/N/06

For

Examiner's

Use

12 Pupils in a school are sitting an exam paper in IT. The IT teacher wishes to keep

the results in a spreadsheet using the column headings shown below. The exam

will be marked out of 60 and the pupils’ scores will be typed into the Exam Score

column.

A B C D E

1 Name Form Gender Exam Score Pass/Fail

2

3

(a) The teacher wants to use a validation check which only allows numbers

between 0 and 60 to be typed in. What is the name of this type of validation

check?

[1]

(b) She types in the following exam scores to test that the validation works:

0, 45, 60 and 87.

Using the data above write down one example of:

(i) normal data

(ii) extreme data

(iii) abnormal data

[3]

9


For

Examiner's

Use

(c) The teacher decides that the pass mark for the exam should be 35. Depending

on the number of marks each pupil gets, the word ‘Pass’ or the word ‘Fail’ will

appear in the Pass/Fail column.

Write down the formula which should appear in cell E2.

1

[2]

She wants to repeat the formula for 30 cells below E2. She does not want to

type in 30 formulae. What is the best way for her to do it?

2

[2]

(d) Spreadsheets are also used to model situations such as financial planning. Tick

which piece of software is the best for doing the following things:

Spreadsheet

!

Word processor

!

Making predictions

Storing numeric data

Writing reports

Sorting data using several criteria

[4]

(e) Give two reasons why computer models are used rather than the real thing.

1

2

[2]

10

© UCLES 2006 0418/01/O/N/06

For

Examiner's

Use

13 A hospital’s intensive care department uses a computer to monitor patients’ conditions.

(a) Analogue temperature and heart monitor sensors are used. Explain why computers are

unable to read the data directly from these sensors.

[2]

(b) What device is needed to enable the computer to read the data?

[1]

(c) Give two advantages of using a computer to collect the data rather than having it done

by nurses.

1

2

[2]

11


For

Examiner's

Use

14 (a) A company searches for minerals. They use an expert system to help them to predict

which minerals are present. Describe how this expert system would be used.

[4]

(b) Name two other applications which involve the use of expert systems.

1

2 [2]

12

© UCLES 2006 0418/01/O/N/06

For

Examiner's

Use

15 Pupil records are kept on a computer in the head teacher’s office. It is not connected to a

network of any description.

(a) Occasionally, a pupil’s record will need to be altered. In order to do this efficiently,

individual records have to be retrieved straight away.

(i) What form of file access is this called?

[1]

(ii) What type of magnetic medium allows this type of access?

[1]

(b) Give two occasions when a pupil’s record will need to be altered.

1

2

[2]

(c) Pupils are worried that their personal data could be misused. Name two things the

head teacher could do to make sure that the personal data is kept secure.

1

2

[2]

(d) The head teacher needs to keep a backup copy of the data. Describe what is meant by

a backup and why it is needed.

[3]

13

0418/01/O/N/06 [Turn over

BLANK PAGE

[PLEASE TURN OVER TO CONTINUE]

14

© UCLES 2006 0418/01/O/N/06

For

Examiner's

Use

16 An international bank has a website. It allows customers to transfer money from one

account to another and pay bills.

(a) Name two items of information that customers would have to type in before the system

will let them use it.

1

2 [2]

(b) Give two advantages to the customer of using this method rather than visiting a branch

of the bank.

1

2

[2]

(c) Give two advantages to the bank of using this method rather than the customer visiting

a branch of the bank.

1

2

[2]

(d) To prevent the customers’ bank details from being intercepted by hackers, the bank

uses encryption. Explain what is meant by encryption.

[2]

15


For

Examiner's

Use

(e) Describe two problems which might arise from the customer using the Internet at home.

1

2

[2]

17 Noreen Patel owns several book shops around the country. She wants to keep details of

each book on a computer database. All the details of each book will be typed into a screen

input form.

Design a screen input form which could be used for typing in one book’s details.

[5]

16

© UCLES 2006 0418/01/O/N/06

For

Examiner's

Use

18 A supermarket uses EFTPOS terminals. When goods are bought, the product numbers of

the goods and the customer’s bank card number are input.

(a) What input devices are used to input:

(i) the product numbers of the goods bought?

(ii) the customer’s bank card number?

[2]

(b) The supermarket’s stock file contains information like this.

Product number Product name Number in

Stock

Re-order

level

Re-order

quantity

002136987421 Oatabix 163 150 400

001467326581 Brick bat tea 135 100 300

002145236891 Mines baked

beans 243 195 600

Describe the computer processing involved in updating the stock file every time a

packet of Oatabix is sold and how the computer would know when it is time to order

some more. Include in your answer any checks that take place on the input data.

[5]

17


For

Examiner's

Use

(c) Describe the computer processing involved in taking payment from the customer’s bank

account including any checks that are made.

[4]

19 A school’s football team have been producing some excellent results. The team captain has

been asked to produce a multimedia presentation for the head teacher to use in an

assembly.

(a) Describe two methods that he could use to obtain images for the presentation.

1

2

[4]

(b) He stores the images on the computer’s hard disc. He closes all applications and

opens the presentation software. Describe how he will produce the multimedia

presentation using these images, sound and text.

[3]

18

© UCLES 2006 0418/01/O/N/06

For

Examiner's

Use

20 Many schools are encouraging teachers and students to use the Internet to improve

teaching and learning. Is this a good thing or a bad thing? Discuss this development giving

the advantages and the disadvantages to students, teachers and the school.

[8]

19

0418/01/O/N/06

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20



publisher will be pleased to make amends at the earliest possible opportunity. University of Cambridge International Examinations is part of the University of Cambridge Local Examinations Syndicate (UCLES), which is itself a department

of the University of Cambridge.

0418/01/O/N/06

BLANK PAGE




Paper 1 Specimen Paper 2007

2 Hours Candidates answer on the Question Paper. No additional materials are required.

READ THESE INSTRUCTIONS FIRST Write in dark blue or black pen in the spaces provided on the Question Paper. You may use a soft pencil for any diagrams, graphs, music or rough working. Do not use staples, paper clips, highlighters, glue or correction fluid. Answer all questions. At the end of the examination, fasten all your work securely together. The number of marks is given in brackets [ ] at the end of each question or part question.

This document consists of 16 printed pages.

! UCLES 2005

[Turn over

2

! UCLES 2005 Specimen Paper 0418/01 2007

1 Name the devices A, B, C, D and E using the words from the list.

C

A B C D E Bar Code Reader CD Rom Drive Digital Camera DVD

Floppy Disk Joystick Keyboard Memory Stick

Modem Mouse Touchpad Trackerball A B

C D

E

[5]

2 Tick true or false next to each of these statements.

True False

A control program is used to produce a business letter

Spreadsheets can be used to produce business accounts

Using computers for long periods of time is good for your back

Magnetic stripe readers are used for reading data from bank cheques

CD ROMs hold more data than DVD ROMs

[5]

3

! UCLES 2005 Specimen Paper 0418/01 2007 [Turn over

3 Give three features of a graphical user interface.

Feature 1

Feature 2

Feature 3

[3]

4 Ring two items which are used to store data.

Buzzer CD ROM Monitor Mouse Floppy disc Scanner

[2]

5 Complete each sentence below using one item from the list.

bar code DVD ROM floppy disc

keyboard magnetic stripe magnetic tape

monitor laser printer zip disc

(a) Data about the details of a tin of beans is stored on the tin using a

(b) Data about a bank account is stored on a credit card on a

(c) A full system backup of 40GB would be made using a

(d) High quality permanent output can be produced using a

[4]

4



INSTRUCTION MEANING





PENUP Lift the pen




10 60 10 30 50 50 30 60 Finish Start Complete the set of instructions to draw these shapes by filling in the blank lines.

PEN DOWN

LEFT 90

FORWARD 30

[5]

5


7 RAM and ROM are types of storage. (a) Describe what is meant by RAM and ROM.

1 RAM

[2]

2 ROM

[2] (b) Give one way a computer uses RAM.

[1] 8 Michael wishes to make a copy of his Geography coursework which is stored on the school

computer system. He wants to take it home to finish it for homework.

He can borrow a CD RW from school but he has a 128 Mb memory stick of his own. (a) Give two advantages of using the CD RW.

1

2

[2] (b) Give two advantages of using the memory stick.

1

2

[2]

6


9 Complete the following sentences using the output devices listed below.

Graph plotter Laser printer Dot matrix printer (a) A garage using multi-part stationery with carbon copies would need a

(b) An architect’s office producing house plans using A0 size paper would use a

(c) A student printing out coursework needing high quality printouts would use a

[3] 10 A manager of the head office of a large company has decided to spend money on linking all its

computers into an intranet. (a) What is an intranet and what would be the benefits to the head office of having one?

[3] (b) The manager would like her workers to have access to the Internet. She is told that she will

need a modem. What does a modem do and why is it needed?

[3]

7


(c) Give two items the workers will need to type into a computer in order to log on to the

network.

1

2

[2] (d) The benefit of being connected to the Internet is that information can be sent from head

office to the different branches. Some of this information will need to be encrypted. 1. What is meant by encryption?

[2] 2. Explain why encryption is needed.

[2]

8


11 A company has asked a customer to sign and send a confidential document immediately. The customer decides not to use post but can’t decide whether to send the document by fax or email attachment.

(a) Give one advantage of using a fax.

[1] (b) Give two disadvantages of using a fax.

1

2

[2] 12 The manager of a car showroom uses a database to store data about cars he sells. This is part of

the database.

Make Model Size of engine Registration Price (!)

Opel Vectra 1.8 VSE 648 19000

Opel Zafira 2.0 BFK 297 29000

Volkswagen Golf 1.4 SB A5526 15000

Volkswagen Polo 1.2 DD B4978 11000

Volkswagen Jetta 1.6 B G8347 19000

Renault Megane 1.4 1233 CD 33 17000

Renault Clio 1.2 6289 XF 54 11000

(a) How many records are there in this part of the database?

[1] (b) How many fields are there in this part of the database?

[1] (c) The records shown are to be sorted in descending order of size of engine. What will be the

registration of the first record in the database after it has been sorted?

[1]

9


(d) Give the name of a field that contains numeric data.

[1] (e) Identify the field type of the ‘model’ field.

[1] (f) Which field would be the key field?

[1] 13 Many hackers have tried to infect other people’s computers with viruses. (a) Describe what is meant by hacking.

[2] (b) Describe what is meant by a virus.

[2] (c) Describe how viruses can be prevented.

[2]

10


14 Put a tick in the column which best describes the type of processing used in the following applications.

On-line Batch Real time

Robots on a car assembly line

Producing credit card bills.

Booking a cinema seat using a computerised booking system.

Launching a rocket to the moon

[4]

11


15 A systems analyst has been asked by a doctor to computerise the records she keeps about her

patients. He must first of all collect information about the existing system. (a) Name three methods he could use to collect this information.

1

2

3

[3] (b) Having collected this information the systems analyst must now produce a screen input form

which the doctor’s assistant could use for typing in each patient’s details. Design a suitable screen input form for inputting the details of one patient.

[5]

12


(c) After the assistant has typed in the data it will need to be verified. Describe two methods of verifying data.

1

2

[2] (d) This data needs to be stored in a database. Describe three features of the structure of the

database that the systems analyst will need to design.

1

2

3

[3] (e) Once the whole system has been designed it will need to be implemented. Describe two

methods of implementation.

1

2

[2] (f) Write down two reasons why one of the methods you gave in (e) is better than the other.

1

2

[2]

13


(g) After a system is implemented, it is evaluated. Give two reasons why a system should be

evaluated.

1

2

[2] 16 Workers in a car factory are paid weekly. Their pay is calculated by multiplying the number of

hours worked by the rate of pay. Tax is then deducted. Below is one record from the transaction file which tells the computer the worker’s payroll number and how many hours they have worked.

Payroll number Hours worked

432175 42

Here is part of the master file.

Payroll number Name Rate per hour (!) Tax rate

361453 Me Te Loan 18.50 27%

295685 Mohammed Ali 15.35 27%

198564 Alan Smith 17.35 27%

432175 Jaswinder Dhillon 17.35 27%

671235 Francois Millard 16.85 27%

(a) Using these examples, describe the computer processing which will take place in order to

produce this worker’s payslip.

[5]

14


(b) Before the transaction file is processed the data must be validated. Name and describe a suitable validation check for the:

1 Payroll number

2 Hours worked

[4] (c) The processing of the transaction file involves reading one record at a time. What type of

access is this called?

[1] (d) Certain types of processing of the master file involves accessing individual records quickly. 1. Which would be the most suitable magnetic medium for storing the master file?

[1] 2. What type of access is this called?

[1] (e) The workers also have personal information stored about them on a computer database.

Give examples of when the company would need to:

1 amend a record

2 insert a record

3 delete a record

[3]

15


17 A burglar alarm system is used to detect when a burglar has entered a house. Name two sensors

which could be used to detect the burglar’s presence. For each one say how it is used to do this.

1

[2]

2

[2] 18 Environmentalists plan to test a fast flowing river for pollution. Give three advantages of using a

computer to do this rather than doing it manually.

1

2

3

[3] 19 Expert systems are used in mineral exploration. (a) Name two other uses of expert systems.

1

2

[2]

16


(b) For one of your answers for (a), describe how such a system would be created.

[4] 20 Many banks now allow their customers to manage their accounts on-line. Discuss this

development. In your answer give the advantages and disadvantages to the bank as well as the advantages and disadvantages to the customer.

[6]

Every reasonable effort has been made to trace all copyright holders. The publishers would be pleased to hear from anyone whose rights we have unwittingly infringed. University of Cambridge International Examinations is part of the University of Cambridge Local Examinations Syndicate (UCLES), which is itself a department of the University of Cambridge.


IB07 06_0418_01/5RP

© UCLES 2007 [Turn over

*4814820178*

For Examiner's Use




Paper 1 May/June 2007

2 hours




DO NOT WRITE IN ANY BARCODES.








2

© UCLES 2007 0418/01/M/J/07

For

Examiner's

Use


256 Mb

78

/*

9–

+

45

6

Enter

NumLock

1

0.

23

CBA

ED

CD ROM Drive Digital camera Joystick Keyboard

Light pen Memory stick MICR Microphone

Mouse Numeric keypad Remote control Trackerball

A

B

C

D

E

[5]

2 Ring two items which are output devices.

DVD ROM Hard disc Keyboard

Plotter Robot arm Scanner

[2]

3


For

Examiner's

Use


a bank cheque a CD RW a floppy disc

a keyboard a magnetic stripe a utility bill

an OMR sheet a dot matrix printer a laser printer

(a) Answers to multiple choice examination questions are recorded using

(b) Magnetic ink characters are used to record information on

(c) A very large graphics file which needs to be moved from one computer to another is

stored on

(d) Information on multi-part stationery is output using

[4]


True False

Spreadsheet software would be used to create a burglar

alarm system.

[1]

A measuring program would be used to record the

temperature of a cooling liquid.

[1]

Control software is used to store information about

workers in a factory.

[1]

MICR is used for reading data from the bar code on a

food item.

[1]

Use of an ergonomic keyboard will lead to RSI.

[1]

4

© UCLES 2007 0418/01/M/J/07

For

Examiner's

Use

5 Complete the following sentences using the most suitable storage device or medium listed

below.

DVD R fixed hard disk drive memory stick

(a) A student taking his coursework home to develop would use a

[1]

(b) A company selling copies of games would use a

[1]

(c) An office worker who never took her work home would store her work on a

[1]

5


For

Examiner's

Use


INSTRUCTION MEANING





PENUP Lift the pen



75 85 65

35 4050

75 75

start finish

PEN DOWN

LEFT 90

FORWARD 50

[5]

6

© UCLES 2007 0418/01/M/J/07

For

Examiner's

Use

7 A school in a cold country would like to grow tropical fruit. They want to use a computer

controlled greenhouse for this purpose.

(a) Name three sensors that they would need to use to measure the soil and growing

conditions.

1

2

3 [3]

(b) Describe how three output devices would be used to control the growing conditions.

1

2

3

[3]

(c) Describe the computer processing which would be required to maintain the necessary

growing conditions.

[5]

7


For

Examiner's

Use

(d) Explain why computer control would be used rather than relying on humans.

[3]

8 Give three reasons why some situations have to be modelled.

1

2

3

[3]

9 The prolonged use of computers can lead to health and safety problems.

(a) Describe two health problems and how they could be prevented.

Problem 1

Prevention

Problem 2

Prevention

[4]

8

© UCLES 2007 0418/01/M/J/07

For

Examiner's

Use

(b) Describe two safety problems and how they could be prevented.

Problem 1

Prevention

Problem 2

Prevention

[4]

10 A systems analyst has been asked by a bookshop owner to computerise the records he

keeps about his books. He will not be keeping records of customers.

(a) The systems analyst must first of all collect information about the existing system.

Describe three methods which would be used to collect this information.

1

2

3

[3]

(b) Tick two reasons why he would want to computerise his record-keeping system.

You can’t have a well organised paper-based record system.

He would have more customers.

He could find details of books more quickly.

He would save space in his bookshop.

It would not cost him very much money to start with.

He could sell books at higher prices.

[2]

9


For

Examiner's

Use

(c) The systems analyst must now produce a screen input form. Design a suitable screen

input form which the owner could use to input the details of one book. Consider both

the fields that you will include and the form layout.

[5]

(d) The data entered will need to be verified. Describe two methods of verifying data.

1

2

[2]

10

© UCLES 2007 0418/01/M/J/07

For

Examiner's

Use

11 Most banks now allow their customers to manage their accounts on-line.

(a) When customers first want to use the system, they have to make sure that they have a

computer with a modem. This is so that they can transfer data from the computer along

telephone lines. Why is a modem needed?

[2]

(b) When customers want to gain access to the system, they have to log on. What two

pieces of information should be entered into the welcome screen?

1

2

[2]

(c) This information will need to be encrypted so that hackers will not be able to gain

access to your account. What is meant by encryption?

[3]

11


For

Examiner's

Use

(d) Describe two disadvantages to the bank of having such a system rather than several

branches.

Disadvantage 1

Disadvantage 2

[2]

(e) Describe two disadvantages to the customer of having such a system.

Disadvantage 1

Disadvantage 2

[2]

(f) As well as on-line processing the bank also uses batch processing to process cheques.

Describe what is meant by batch processing.

[3]

12

© UCLES 2007 0418/01/M/J/07

For

Examiner's

Use

12 Tick whether the following uses are more suitable for ROM or RAM.

ROM RAM

Storing data that the user is currently working on

Storing the system BIOS

Storing program instructions for computer games

[3]

13 The manageress of a supermarket uses a database to store data about the food she sells.

This is part of the database.

Bar code Producer Food type Number in stock Price ($)

5049179000794 Logekks Potato flakes 123 2.90

5027200190653 Squarebranch Chocolate bar 158 0.95

5010029000016 Roofs Beefburgers 135 1.55

5014569021017 Kapats Gravy 89 3.95

5010479001213 Startle Yogurt cream 119 1.85

(a) How many records in this part of the database have more than 100 items in stock?

[1]

(b) Which is the key field in this database?

[1]

(c) The records shown are to be sorted in ascending order of price. What will be the bar

code of the first record in the database after it has been sorted?

[1]

(d) Give the name of a field that contains text.

[1]

13


For

Examiner's

Use

(e) Name and briefly describe the most appropriate validation check which would be

carried out on the bar code number.

[3]

(f) The bar code number is scanned into the computer system when the item is sold.

Describe the computer processing that would then take place in order for the number in

stock to be updated.

[3]

(g) The checkout is an EFTPOS terminal. When all the items have been checked through

the terminal, the customer presents a chip and PIN card for payment. After the card is

checked to see if it is valid, another check on the card is now carried out. Describe this

check.

[2]

14

© UCLES 2007 0418/01/M/J/07

For

Examiner's

Use

(h) If the card is accepted, the customer’s bank account is now charged. Describe the

computer processing that takes place to enable this transaction to be carried out.

[4]

14 A school has a number of computer classrooms which are networked together to form a

LAN. The head teacher is planning to let some pupils have a video conference with another

school in the same country but quite far away. They have bought a modem.

(a) Each of the school’s computers already have speakers. What extra hardware would the

school need to buy so that it can take part in a video conference?

[2]

(b) Describe the advantages of having a video-conference rather than a conference in one

of the schools.

[3]

15


For

Examiner's

Use

15 A large company is going to replace its current computer system with a new one. The

system has been created and is now going to be implemented.

(a) The company is considering two methods of implementation, parallel running and direct

changeover. Describe these methods giving one advantage and one disadvantage for

each method.

(i) Parallel running

Advantage

Disadvantage

[3]

(ii) Direct changeover

Advantage

Disadvantage

[3]

16

© UCLES 2007 0418/01/M/J/07

For

Examiner's

Use

(b) After the system is implemented, the company will be given documentation to go with

the system. This will consist of technical documentation and user documentation.

Name three different items that each type of documentation will contain.

Technical

1

2

3

User

1

2

3

[6]

17


For

Examiner's

Use

(c) After a system is implemented, it is evaluated. Describe how a new system is

evaluated.

[3]

18

© UCLES 2007 0418/01/M/J/07

For

Examiner's

Use

15 An oil company is investigating whether they will find oil at a certain site. They will use an

expert system. Describe the inputs, outputs and processing of this system.

[6]

19

0418/01/M/J/07

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20



publisher will be pleased to make amends at the earliest possible opportunity. University of Cambridge International Examinations is part of the Cambridge Assessment Group. Cambridge Assessment is the brand name of University of

Cambridge Local Examinations Syndicate (UCLES), which is itself a department of the University of Cambridge.

0418/01/M/J/07

BLANK PAGE


IB08 06_0418_01/XRP


*1627232854*

For Examiner's Use





2 hours











2

© UCLES 2008 0418/01/M/J/08

For

Examiner's

Use


A B C

D E

Digital camera DVD drive Joystick Keyboard

Light pen Magnetic stripe

reader Memory stick Microphone

MICR Remote control Trackerball Web cam

A B

C D

E [5]


Bar code reader Buzzer Memory stick

Motor Mouse Zip disc drive

[2]

3


For

Examiner's

Use


True False

Presentation software would be used to process measuring data

Database software would be used to store payroll records

An Optical Character Reader is used to read information from bank cheques

DVDs can store more information than CDs

Speakers are used to input information to a multimedia presentation

[5]


a bank cheque a CD ROM a floppy disc

a keyboard a magnetic stripe a utility bill

a school register a dot matrix printer a graph plotter

(a) Text is typed into a word processor using

(b) Optically read marks are used to record information on

(c) A very small file which needed to be moved from one

computer to another for editing would be stored on

(d) Very large printouts would be obtained using

[4]

4

© UCLES 2008 0418/01/M/J/08

For

Examiner's

Use

5 Copyright law applies whenever you buy software. Give three actions that would break

copyright law.

1

2

3

[3]

5


For

Examiner's

Use


INSTRUCTION MEANING





PENUP Lift the pen


80 7520

75

80 85 55

50

25

Start Finish


PEN DOWN

LEFT 90

FORWARD 80

[5]

6

© UCLES 2008 0418/01/M/J/08

For

Examiner's

Use

7 RAM and ROM are types of storage.

(a) Describe the differences between RAM and ROM.

[3]

(b) Explain what RAM and ROM are used for.

[2]

8 The use of computers can lead to safety problems. Describe two safety problems and how

they could be prevented.

Problem 1

Prevention

Problem 2

Prevention

[4]

7


For

Examiner's

Use

9 A systems analyst has been asked by a travel agent to computerise the records she keeps

about available holidays.

(a) The systems analyst must produce a screen input form which the travel agent could use

for typing in the details of each holiday. Design a suitable screen input form for inputting

the details of one holiday.

[5]

8

© UCLES 2008 0418/01/M/J/08

For

Examiner's

Use

(b) After the travel agent has typed in the data it will need to be verified. Explain two ways in

which this could be done.

1

2

[4]

(c) Describe the differences between validation and verification giving two examples of

validation checks.

[5]

9


For

Examiner's

Use

(d) After the system is designed it will need to be implemented. Discuss methods by which

the system could be implemented and give reasons why the systems analyst might

choose one of the methods and not the others.

[7]

10

© UCLES 2008 0418/01/M/J/08

For

Examiner's

Use

(e) After the system is implemented the travel agent will be given documentation to go with it.

This will consist of technical documentation and user documentation. Explain the purpose

of each type of documentation and two different items that each type of documentation

will contain.

Technical documentation

Purpose

Item 1

Item 2

User documentation

Purpose

Item 1

Item 2

[6]

10 Robotics are now used in the production of motor cars. Describe the effects this had on the

workers who used to manually produce cars.

[3]

11


For

Examiner's

Use

11 (a) A group of doctors want to have an expert system to help them with their diagnoses.

Describe how such a system would be created and evaluated.

[5]

(b) Give two other examples of situations where expert systems might be used.

1

2

[2]

12

© UCLES 2008 0418/01/M/J/08

For

Examiner's

Use

12 The head teacher of a school wants to build an automated weather station. He has selected

a group of pupils to be responsible for the weather station. The pupils want to use sensors

connected to a computer to do this.

(a) Name three sensors that will be needed to measure the weather conditions.

1

2

3

[3]

(b) Explain why computers are unable to read the data directly from these sensors.

[2]

(c) Describe three reasons why a computer would be used rather than relying on humans.

1

2

3

[3]

13


For

Examiner's

Use

(d) When the results are produced they will be stored in a spreadsheet. The pupils want to

produce a word processed report on the weather every month. Describe how the pupils

will create their report using the spreadsheet results as well as a description of the

weather.

[5]

13 Tick three applications which use batch processing.

Producing utility bills.

Monitoring a patient’s condition in intensive care.

Inputting details of new stock into a library’s database.

Robotics on a car production line.

Controlling a greenhouse.


[3]

14

© UCLES 2008 0418/01/M/J/08

For

Examiner's

Use

14 (a) Name the following networks.

(i) (ii) [2]

(b) Give two advantages and two disadvantages of having computers networked.

Advantage 1

Advantage 2

Disadvantage 1

Disadvantage 2

[4]

15


For

Examiner's

Use

15 The manager of a supermarket uses a database to store data about the products she sells.

This is part of the database.

Bar code Producer Food type Number in stock

0049179000794 7 Herbot Frozen Carrots 312

0027200190653 5 Caeser Baking Powder 625

0010029000016 X Brutus Margarine 478

0014569021017 X Malin Garlic Paste 206

0010479001213 3 Holly Chicken 513

(a) How many records are there in this part of the database?

[1]

(b) How many fields are there in this part of the database?

[1]

(c) The records shown are to be sorted in descending order of number in stock. What will be

the bar code of the first record in the database after it has been sorted?

[1]

(d) Give the name of a field that contains numeric data.

[1]

(e) Identity the field type of the Producer field.

[1]

(f) Which field would be the key field?

[1]

16

© UCLES 2008 0418/01/M/J/08

For

Examiner's

Use

(g) When goods are sold the database is automatically updated. Describe how this is done.

[4]

(h) When a customer pays for an item, chip and pin technology is used. Describe the steps

involved in a customer transaction.

[5]

(i) The supermarket owner wants to make the supermarket’s products available on-line.

Name two pieces of data a customer would have to type in to gain access this system.

1

2

[2]

17


For

Examiner's

Use

(j) To protect the customers’ data the owner will make sure the system uses encryption.

Describe encryption.

[3]

18

© UCLES 2008 0418/01/M/J/08

For

Examiner's

Use

(k) Describe the advantages and the disadvantages to the shops and the customer arising

from shopping from home using the Internet.

[8]

19

0418/01/M/J/08

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20





0418/01/M/J/08

BLANK PAGE

This document consists of 15 printed pages and 1 blank page.

IB08 11_0418_01/6RP


*2670038596*

For Examiner's Use




Paper 1 October/November 2008

2 hours








DO NOT WRITE IN ANY BARCODES.




2

© UCLES 2008 0418/01/O/N/08

For

Examiner's

Use


A B C

D E

CD drive Desktop computer Graph plotter Graphics tablet

Keyboard Laptop computer Laser printer Light pen

Microphone Mouse PIN pad Sensor

A

B

C

D

E

[5]

2 Ring two items which are magnetic storage media.

CD ROM DVD ROM DVD RW

Floppy disk Hard disk Memory stick

[2]

3


For

Examiner's

Use


True False

An OMR is used to convert scanned text into text which can be word

processed.

MICR is used to read information from bank cheques.

A TFT monitor takes up less space than a CRT monitor.

A magnetic stripe can store very large volumes of data.

A graphics tablet is used to input freehand drawings.

[5]

4 Draw five lines on the diagram to match the output device to the application.

[5]


bar code chip DVD ROM

floppy disc keyboard laser printer

magnetic stripe magnetic tape zip disc

(a) The most suitable storage medium for making system backups

for a network is a

(b) Data about the details of a PIN are stored on a bank card on a

(c) Videos produced so that data can not be changed are stored on a

(d) Details of a product are scanned at a POS from a

[4]

Device Type of Output

Dot matrix printer high quality high volume output

Laser printer high quality low volume output

Inkjet printer multimedia presentation

Monitor high quality very large printouts

Graph plotter continuous stationery

4

© UCLES 2008 0418/01/O/N/08

For

Examiner's

Use


INSTRUCTION MEANING





PENUP Lift the pen


40 100

70

60 80 85

50

20

Start Finish


PEN DOWN

LEFT 90

FORWARD 40

[5]

5


For

Examiner's

Use

7 Draw in the communication lines in the following diagrams to make:

(a) a star network

(c) a bus network

(b) a ring network

[3]

8 Describe two advantages of using email compared with using the normal postal service.

1

2

[2]

6

© UCLES 2008 0418/01/O/N/08

For

Examiner's

Use

9 Mohammed Hussain owns a bookshop whose sales have grown enormously. He now wants

to have a computer system to take over the running of the shop. He has employed a systems

analyst to advise him on the type of system he needs. Before she can recommend a new

system she will need to analyse the current system.

(a) Describe four methods of researching/analysing and for each one write down an

advantage of using that method.

Method 1

Method 2

Method 3

Method 4

[8]

7


For

Examiner's

Use

(b) The systems analyst decides that the system needs to have a screen input form to

enter all the details of each book. Design a screen input form which could be used for

typing in the details of one book.

[5]

(c) The systems analyst now designs the file structure. Give three items which would need

to be designed as part of the file structure.

1

2

3

[3]

8

© UCLES 2008 0418/01/O/N/08

For

Examiner's

Use

(d) After the system is designed it will be implemented. Name and describe three types of

test data that will be used to test the system.

1

2

3

[6]

(e) Name three methods of implementing this new system and for each one describe a

disadvantage of using that method.

1

2

3

[6]

9


For

Examiner's

Use

(f) After the system is implemented it will be evaluated. Identify three items which should

be present in the evaluation.

1

2

3

[3]

(g) Mohammed is worried that when he begins to use the new computer system

continuously there may be health hazards. Describe three health hazards which he

might meet.

1

2

3

[3]

10 Explain what pin pad and chip readers are and say how they are used.

[3]

10

© UCLES 2008 0418/01/O/N/08

For

Examiner's

Use

11 Put a tick in the column which best describes the type of processing used in the following

applications.

On-line Batch

Booking a holiday.

Producing electricity bills.

Using an ATM.

Producing monthly payrolls.

[4]

12 A sports shop owner uses a spreadsheet to calculate his profits. This is part of the

spreadsheet.

A B C D E

1 Item Cost price Selling Price Profit per

item

Number in

stock

2 Kino Trainers $40 $45 $5 126

3 Goalagame

Boots $38 $44 $6 145

4 Melchester

Rovers shirt $65 $78 $13 104

5 IOM football $42 $51 $9 56

6 Beckett

shinpads $32 $40 $8 101

(a) Give the cell reference of the cell that contains 126.

[1]

(b) Give the cell reference of a cell that contains text data.

[1]

(c) Write down the formula used to calculate the value in cell D2.

[1]

11


For

Examiner's

Use

(d) When the spreadsheet was created a similar formula had to go in cells D3 to D6

Describe how to enter these formulae without typing them.

[3]

(e) How many rows are shown in the spreadsheet?

[1]

(f) This spreadsheet is an example of a financial model. Give two examples of computer

models, other than financial models.

1

2

[2]

(g) Give two reasons why computer models are used rather than the real thing.

1

2

[2]

12

© UCLES 2008 0418/01/O/N/08

For

Examiner's

Use

13 A doctor’s surgery uses an expert system. Describe the input, output and processing of this

system.

[6]

14 A gardener wants to use a computer to monitor the growing conditions in his greenhouse.

(a) Name three sensors that he will need.

1

2

3 [3]


[2]

(c) What device is needed to enable the computer to read the data?

[1]

13


For

Examiner's

Use

(d) Give two advantages of using a computer to monitor the conditions rather than having it

done by humans.

1

2

[2]

15 A company wants all its offices to take part in a video conference.

(a) Describe what is meant by video conferencing.

[3]

(b) Describe two advantages to the company of such a system.

1

2

[2]

16 For each item of system documentation tick whether it is technical or user documentation.

Technical User

System flowcharts

Program coding

File structures

Trouble-shooting guide

[4]

14

© UCLES 2008 0418/01/O/N/08

For

Examiner's

Use

17 A student has been asked by his headmaster to produce a way of advertising the school to

the local public. One option is to use a desktop publishing package to produce a magazine

to distribute to every household in the neighbourhood. He could also create a presentation

to be shown in the local library. Discuss the advantages and disadvantages of each option.

[6]

15

© UCLES 2008 0418/01/O/N/08

For

Examiner's

Use

18 Many people are now using the Internet for banking, shopping, booking holidays and theatre

tickets. Discuss this development and its effect on the general public.

[8]

16





0418/01/O/N/08

BLANK PAGE


IB09 06_0417_01/4RP


*8341556169*

For Examiner's Use



INFORMATION AND COMMUNICATION TECHNOLOGY 0417/01


2 hours











2

© UCLES 2009 0417/01/M/J/09

For

Examiner's

Use

1 Name the methods used to represent information on A, B, C, D and E using the words from

the list below.

A B

D E

C

SECTION 11 A B C D E

2 A B C D E

3 A B C D E

4 A B C D E

5 A B C D E

SECTION 21 A B C D E

2 A B C D E

3 A B C D E

4 A B C D E

5 A B C D E

Bar code Chip DVD ROM

Flash memory Graphics tablet Light pen

Magnetic ink characters Magnetic stripe Optical marks

Optically read characters Plotter Remote control

A B

C D

E [5]

2 Ring two items which are input devices.

Buzzer Dot matrix printer Graph plotter

Graphics tablet Laser printer Touch screen

[2]

3


For

Examiner's

Use

3 Tick TRUE or FALSE next to each of these statements.

TRUE FALSE

Encryption prevents hackers from deleting data.

Back up procedures prevent hackers from accessing data on a

computer.

You should regularly change your password to make it more difficult

for hackers to access your data.

You should always log off after using a networked computer.

You should always tell a friend your password in case you forget it.

[5]

4 Draw five lines on the diagram to match the software to how it could be used.

Software Use

Desktop publisher suggesting medical diagnoses

Measuring program storing pupil records in a school

Spreadsheet producing a school magazine

Inference engine monitoring temperature in a science experiment

Database managing personal finance

[5]

5 Select the most suitable data type from the list to represent:

(a) the number of children in a family

(b) a line of a company’s address

(c) the gender of a person

(d) somebody’s birthday

Alphanumeric Boolean Date

Numeric (Integer) Numeric (Real)

[4]

4

© UCLES 2009 0417/01/M/J/09

For

Examiner's

Use


INSTRUCTION MEANING





PENUP Lift the pen


Complete the set of instructions to draw this shape by filling in the blank lines.

35 80 10

7080

180

Start Finish

[5]

PEN DOWN

LEFT 90

FORWARD 35

RIGHT 90

5


For

Examiner's

Use

7 Two types of network topology have been combined to form a larger network.

(a) Give the name of the type of the larger network topology [1]

(b) Give the names of the other two types of topology in this network.

1

2 [2]

(c) Complete each sentence below using one item from the list.

A bridge A hub

A proxy server A switch

(i) does not manage any of the data traffic through it.

(ii) forwards data packets to computers and printers.

(iii) can be a major component of a firewall.

(iv) usually only has two ports. [4]

8 Tick TRUE or FALSE next to each of these statements which describe the use of e-mail

compared to the normal postal service.

TRUE FALSE

E-mails can only be sent using a Post Office.

You don’t have to leave your house to send e-mail.

It is quick to send the same message to many people using e-mail.

It takes a long time for an e-mail to arrive.

[4]

6

© UCLES 2009 0417/01/M/J/09

For

Examiner's

Use

9 Put a tick in the column which best describes the type of processing used in the following

applications.

Real Time Batch

A burglar alarm system.

Producing gas bills.

Cooking with an automatic cooker.

Scanning OMR sheets.

[4]

10 A book shop owner uses a spreadsheet to calculate profits. This is part of the spreadsheet.

A B C D E F

1 ISBN

Cost

price

($)

Selling

Price

($)

Profit

per book

($)

Number

sold

Total

Profit

($)

2 0-34-080006-2 22 29 7 32 224

3 0-52-154540-4 26 35 9 45 405

4 0-74-879116-7 15 21 6 32 192

5 0-34-081639-2 33 41 8 89 712

(a) Which row contains labels?

[1]

(b) Give the cell reference of the cell that contains 0-74-879116-7.

[1]

(c) Give the cell reference of a cell that contains numeric data.

[1]

(d) Write down the formula which has been entered in cell F2.

[1]

7


For

Examiner's

Use

(e) When the spreadsheet was created a similar formula had to go in cells F3 to F5. Tick

three methods that could have been used to achieve this, leaving F2 unchanged.

Cut and paste

Fill down

Copy and paste

Dragging the fill handle down

Transposing the cells

Absolute cell referencing

[3]

11 Raquel Lopez owns a chain of car repair garages. She keeps records of all her customers.

She has employed a systems analyst to recommend a new computer system for her

business. The first task the analyst will undertake is to analyse the existing system.

(a) Give four methods of analysing the existing system.

1

2

3

4

[4]

(b) Details of each customer need to be entered into the computer. Give one reason why

this data will need to be verified.

[1]

(c) Name and describe one method of verification.

[2]

8

© UCLES 2009 0417/01/M/J/09

For

Examiner's

Use

(d) The systems analyst decides that the system needs to have a screen input form to

enter all the details of each customer. Name four data items that would be included in

such a form.

1

2

3

4 [4]

(e) Describe four features that would help a user to navigate between input forms.

1

2

3

4

[4]

(f) The systems analyst now designs the file structure. Tick three items which would need

to be designed as part of the file structure.

Field names

Input screen

Print format

Validation routines

Field lengths

Hardware and software required

[3]

9


For

Examiner's

Use

(g) Name three methods of implementing this new system.

1

2

3 [3]

(h) After the system is implemented it will be evaluated. Tick three items which should be

present in the evaluation.

Printouts of the results of queries

The appropriateness of the solution

Comparing the solution with the original task requirements

Program listing

Any improvements which can be made to the system

System flowcharts

[3]

10

© UCLES 2009 0417/01/M/J/09

For

Examiner's

Use

12 Companies in the nuclear industry often use simulations because to experiment with

nuclear material would be too dangerous.

(a) Give two other examples of computer modelling which are used to minimise danger.

1

2

[2]

(b) Other than minimizing danger, give three reasons why computer models are used

rather than the real thing.

1

2

3

[3]

13 Tick four items which must be part of an expert system.

Bar code reader

Spreadsheet

Dot matrix printer

Inference engine

Interactive input screen

Knowledge base

Rules base

Search engine

[4]

11


For

Examiner's

Use

14 The prolonged use of computers can lead to health and safety problems.

(a) Tick two health problems that may be caused by prolonged use of computers.

RSI

Influenza virus

Blood poisoning

Headaches

[2]

(b) Tick two ways of preventing health problems.

Sit far away from the monitor

Sit in a comfortable chair

Take regular breaks

Put a screen filter in front of the monitor

[2]

(c) Tick two safety problems that may be caused by the use of computers.

Back problems

Electrocution

Fire

Hacking

[2]

(d) Tick two ways of preventing safety problems.

Don’t overload electrical sockets

Make sure there are no bare wires

Use an expert system

Use anti-virus software

[2]

12

© UCLES 2009 0417/01/M/J/09

For

Examiner's

Use

15 Computers are used to manage data in libraries. Name the different methods used to input

data about books and borrowers and discuss the advantages and disadvantages of these.

[6]

13


For

Examiner's

Use

16 A hospital uses computers to monitor the health of patients.

(a) Give three advantages of using computers rather than nurses to do this.

1

2

3

[3]

(b) Explain why analogue to digital conversion is needed when computers are used in

monitoring and measuring.

[4]

14

© UCLES 2009 0417/01/M/J/09

For

Examiner's

Use

17 Many companies use video conferencing instead of face-to-face conferencing. Discuss the

advantages and disadvantages of this.

[6]

18 Describe four advantages that the use of chip and pin systems have over a magnetic stripe

system.

1

2

3

4

[4]

15

© UCLES 2009 0417/01/M/J/09

For

Examiner's

Use

19 A company wants all its offices to be able to communicate using ICT systems. They are

considering using fax, e-mail and bulletin boards. Discuss the advantages and

disadvantages of these methods.

[8]

16





0417/01/M/J/09

BLANK PAGE


IB09 11_0417_01/6RP


*5892256458*

For Examiner's Use




Paper 1 October/November 2009

2 hours











2

© UCLES 2009 0417/01/O/N/09

For

Examiner's

Use


A B C

D E

Digital camera Dot matrix printer Floppy disc drive

Graphics tablet Hard disk drive Keyboard

Magnetic stripe reader Memory stick Multimedia projector

Remote control Scanner Temperature sensor

A B

C D

E

[5]

2 Ring two items which are storage devices.

Bar code reader Keyboard Laser printer

Memory stick Mouse Zip disc drive

[2]

3


For

Examiner's

Use

3 Tick True or False next to each of these statements.

True False

Dot matrix printers produce high quality output.

Laser printers are very noisy.

Graph plotters are used when extremely large hard copy is required.

Inkjet printers are used where continuous stationery is required.

[4]


a bank cheque a floppy disc an inkjet printer

a light sensor a memory stick a microphone

a mouse a plotter a school register

(a) Options from a menu can be selected using

(b) Magnetic ink characters are used to record information on

(c) A very large file which needs to be moved from one computer to another for

editing can be stored on

(d) Sound can be input to a computer using [4]

5 Tick True or False for the following statements about RAM and ROM.

True False

RAM is not volatile.

ROM is used to store the BIOS of a computer.

The data in ROM is easier to change than that in RAM.

RAM is used to store the data the user is currently working on.

[4]

4

© UCLES 2009 0417/01/O/N/09

For

Examiner's

Use


INSTRUCTION MEANING





PENUP Lift the pen




Complete the set of instructions to draw these regular shapes by filling in the blank lines.

Each side is 100 mm long and there is a gap of 80 mm between the two shapes.

Start Finish 100 100

100

80

100 100 100 100

[5]

PEN DOWN

LEFT 90

REPEAT

FORWARD 100

120

BACKWARD

RIGHT 90

5


For

Examiner's

Use

7 Tick whether the following problems are Health problems or Safety problems related to the

use of computers.

Health Safety

Headaches caused by prolonged use.

Trailing wires in a computer room.

RSI through continual typing.

Back problems through bad posture.

Too many plugs in an electric socket.

Drinking water while using a computer.

[6]

8 Tick three applications which use on-line processing.

!

Producing utility bills.

Paying for goods at an EFTPOS terminal.

Making an airline booking.

Producing monthly payrolls.

Monitoring a patient’s condition in a hospital.


[3]

6

© UCLES 2009 0417/01/O/N/09

For

Examiner's

Use

9 A systems analyst has been asked by a librarian to develop a computer system to store

information about books and borrowers. After the existing system is analysed the new

system will be designed. The first item to be designed will be the input screen.

(a) Name four items of data about one borrower, apart from the number of books

borrowed, that would be input using this screen.

1

2

3

4 [4]

(b) Describe four features of a well designed input screen.

1

2

3

4

[4]

(c) The librarian will need to type in data about each book from existing records. In order to

prevent typing errors the data will be verified. Describe two methods of verification

which could be used.

1

2

[4]

7


For

Examiner's

Use

(d) After the system is designed it will need to be implemented and then tested.

No borrower can take out more than 6 books. Describe the three types of test data that

can be used, using a number of books as an example for each.

1

2

3

[6]

(e) The system must now be evaluated. Tick three reasons why this is done.

!

Improvements can be made.

The hardware and software can be specified.

Limitations of the system can be identified.

To see how many books are required.

To make sure the user is satisfied with the system.

So that program coding can be written.

[3]

8

© UCLES 2009 0417/01/O/N/09

For

Examiner's

Use

(f) After the system is implemented the librarian will be given technical documentation and

user documentation. Name three different components of each type of documentation.

Technical

1

2

3

User

1

2

3 [6]

10 A supermarket uses a Chip and PIN system at its checkouts. Put the following steps in

order using the numbers 2 to 8. The first step has already been done for you.

The customer types in the PIN.

If the PIN and the number stored in the chip are the same go onto the next step.

The customer’s account is checked to see if it has sufficient funds.

The card is inserted into the reader. 1

The PIN is compared with that stored in the chip.

The transaction is authorized.

The device checks if the card is valid.

The supermarket computer contacts the customer’s bank computer.

[7]

9


For

Examiner's

Use

11 A car repair centre uses an expert system to help diagnose car engine faults.

(a) Describe the inputs, outputs and processing of this system.

[6]

(b) Give two other examples of situations where expert systems might be used.

1

2

[2]

10

© UCLES 2009 0417/01/O/N/09

For

Examiner's

Use

12 An automatic washing machine is controlled by a microprocessor.

(a) Tick two sensors which would have to be used in the machine.

!

Pressure sensor

Proximity sensor

Temperature sensor

Oxygen sensor

[2]


[2]

(c) Describe how the microprocessor uses data from the sensors to control the washing

machine.

[5]

11


For

Examiner's

Use

(d) There are many microprocessor controlled devices in the modern home. Describe the

effects of these on people’s lifestyles.

[4]

13 (a) Name two network devices that could be used to connect a LAN to a WAN

1

2 [2]

(b) Describe the differences between a WAN and a LAN

[5]

12

© UCLES 2009 0417/01/O/N/09

For

Examiner's

Use

14 A sports shop owner uses a database to store data about the products he sells. This is part

of the database.

Bar code Brand name Product type Number in stock

1825698000040 Kino Football shirt 22

2266127153625 Dasdida Hockey boots 15

3756643392895 Brooke Netball 32

3014232068474 Borem Rugby shorts 26

5010223708943 Mupe Running shoes 12

(a) How many fields are there in this part of the database?

[1]

(b) How many records are there in this part of the database?

[1]

(c) Give the name of the field that is already sorted in order.

[1]

(d) The records shown are to be sorted in ascending order of number in stock. What will

be the brand name of the first record in the database after it has been sorted?

[1]

(e) Which field would be the key field?

[1]

(f) Name and describe the most suitable validation check which would be carried out on

the Number in stock field.

Name

Description

[3]

13


For

Examiner's

Use

15 Tick three essential components of a computer to be used in a video conferencing system.

!

Graph plotter

Trackerball

Microphone

Speakers

Optical mark reader

Web cam

[3]

16 On-line banking is used by many customers. Describe three methods of making sure that

the data transferred is secure.

1

2

3

[6]

14

© UCLES 2009 0417/01/O/N/09

For

Examiner's

Use

17 A school encourages its students to use the Internet for research purposes. Discuss the

issues relating to such use with reference to the reliability and desirability of the information.

[8]

15

0417/01/O/N/09

BLANK PAGE

16





0417/01/O/N/09

BLANK PAGE


IB10 06_0417_11/8RP


*2992782698*

For Examiner's Use





2 hours








No marks will be awarded for using brand names of software packages or hardware.




2

© UCLES 2010 0417/11/M/J/10

For

Examiner's

Use

1 Name the methods of storage A, B, C and D using the words from the list.

A B

C D

Bar code Chip DVD RAM Graphics tablet

Light pen Magnetic disc Magnetic tape Pen drive

A

B

C

D

[4]


Blu-ray disc Graph plotter Graphics tablet

Optical mark reader Projector Web cam

[2]

3


For

Examiner's

Use

3 Tick TRUE or FALSE next to each of these statements.

TRUE FALSE

Input devices are examples of hardware

Backing storage devices are examples of software

A Graphical User Interface is a part of an operating system

A laptop computer cannot be carried around

[4]

4 Draw five lines on the diagram to match the input device to its most appropriate use.

Input device Use

Remote control Inputting freehand drawings into a computer

Keyboard Operating a television

Touch screen Entering text when writing a book

Chip reader Selecting options in a tourist information kiosk

Graphics tablet Reading information from a credit card

[5]


A hub An intranet A proxy server

A WAN A WLAN

(a)

is a device used to connect computers together to form a LAN.

(b)

is a network with restricted access.

(c)

can allow networked computers to connect to the internet.

(d)

is a wireless local area network.

[4]

4

© UCLES 2010 0417/11/M/J/10

For

Examiner's

Use

6 Students can use CDs or pen drives for storing their work. Give three reasons why students

may prefer to use pen drives.

1

2

3

[3]

5


For

Examiner's

Use


INSTRUCTION MEANING





PENUP Lift the pen


80

70 60 80

80

Start Finish

100

Complete the set of instructions to draw this shape by filling in the blank lines.

PEN DOWN

FORWARD 80

RIGHT 90

[5]

6

© UCLES 2010 0417/11/M/J/10

For

Examiner's

Use

8 Tick three developments which have arisen because of the internet.

!

Web logs

Databases

Models

Wikis

DTP

Social networking sites

[3]

9 Tick TRUE or FALSE next to each statement to indicate whether it is an example of batch

processing.

TRUE FALSE

Withdrawing money from an ATM

Producing utility bills

Booking a plane ticket

Producing payslips

[4]

10 A school uses a computer controlled greenhouse to grow plants.

(a) Name three sensors that would be used in the greenhouse.

1

2

3 [3]

(b) Explain why analogue to digital conversion is needed when computers are used to

control a greenhouse.

[2]

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(c) Tick three advantages of using computers, rather than students, to control the growing

conditions.

!

Computer readings are more accurate

Students always forget to take readings

Students might be unavailable to take readings during school holidays

Computers can record data for later use

Computers can analyse the results

Computers can react to changes in the conditions immediately

[3]

The students want a printed record of the computer readings as they are taken. They want

to put the printer inside the greenhouse. Their teacher has suggested a dot matrix printer.

The students suggested an inkjet printer.

(d) Give two reasons why the teacher has suggested a dot matrix printer.

1

2

[2]

(e) Give two reasons why the students have suggested an inkjet printer.

1

2

[2]

8

© UCLES 2010 0417/11/M/J/10

For

Examiner's

Use

11 A school library has a file for storing details of the books it has and a file for storing details of

its borrowers. The two files are linked using a common field.

Book File

Years 10 and 11 Borrower File

(a) How many records are there in the book file?

[1]

(b) How many fields are there in the borrower file?

[1]

(c) What type of database do these two files form?

[1]

(d) Give two reasons why this type of database system is used rather than having two flat

files.

1

2

[2]

Code Title Author Published Number

in stock Cost

1857028898 The Code Book Simon Singh 1999 2 £10.99

0747591054 The Deathly Hallows J K Rowling 2007 8 £17.99

0748791167 Sepulchre Kate Mosse 2007 3 £18.99

0563371218 Full Circle Michael Palin 1997 1 £19.99

Number Name Form Book Borrowed Due Back

0102 Me Te Loan 11A 1857028898 14/06/2010

1097 Gurvinder Moore 10C 0747591054 12/06/2010

0767 Akhtar Aftab 10B 0748791167 06/06/2010

0611 Graham Reeves 10D 0563371218 08/06/2010

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(e) Which field is the primary key in the Book file?

[1]

(f) Which field is the foreign key?

[1]

(g) Which field has the data type currency?

[1]

(h) What data type would be most appropriate for the Due Back field?

[1]

(i) Name the most appropriate validation check for the Number in stock field.

[1]

(j) Name the most appropriate validation check for the Form field.

[1]

10

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Use

12 Aftab and his family have three computers in their home. He wants to connect the

computers into a network. Explain why he would need:

A router

A browser

Email

An ISP

[4]

13 The use of computer networks can lead to problems in keeping data secure and confidential.

(a) Tick two problems which can affect the security of data.

!

Data encryption techniques are easy to crack

Data can be accessed without being in the building where it is stored

Data thieves often do not leave physical signs of robbery

Data passwords are easy to guess

[2]

(b) Tick two ways of increasing the confidentiality of data.

!

Make backups of the data

Users should write down their password in case they forget it

Have a firewall connected to the network

Have different levels of access to the data

[2]

11


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Examiner's

Use

14 Joan owns a small company. She wishes to replace the existing computerised system with

a new one. She has employed a systems analyst, Jasvir, to plan this.

(a) Before Jasvir decides on a system he must collect information about the existing

system. Tick whether the following statements about the various methods of information

collection are TRUE or FALSE.

TRUE FALSE

Examining documents has to be done in the presence of all the workers

Appointments have to be made with a worker in order to complete a

questionnaire

It is possible to change questions in the course of an interview

Observing the current system can provide a detailed view of the

workings of the system

[4]

(b) After Jasvir has completed the analysis of the existing system, he will need to design

the new system. Tick four items which would need to be designed.

!

Inputs to the current system

User and information requirements

Data capture forms

Validation routines

Problems with the current system

File structure

Report layouts

Limitations of the system

[4]

12

© UCLES 2010 0417/11/M/J/10

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Use

15 After a system is designed it will be implemented. Give one advantage of each of the

following methods of implementation.

Direct changeover

Parallel running

Phased implementation

[3]

16 After a system has been implemented it needs to be evaluated. Identify two evaluation

strategies and state a reason why each is needed.

Strategy 1

Reason 1

Strategy 2

Reason 2

[4]

13


For

Examiner's

Use

17 Describe three items of hardware which would be needed, in addition to those normally

supplied with a PC, in order to take part in a video conference.

1

2

3

[3]

18 A supermarket uses POS terminals at its checkouts. This enables stock levels to be

updated automatically. Put the following steps in order using the numbers 2 to 8. Step 1 has

already been done for you.

The number in stock of the matching record is read

Until a match is found with the entered bar code

The data file is searched

The bar code on the product is read by the bar code reader 1

The new value of number in stock is written back to the file

If it is equal to the re-order number then more goods are automatically re-ordered

One is subtracted from the number in stock

The number in stock is compared with the re-order number

[7]

14

© UCLES 2010 0417/11/M/J/10

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Use

19 Give three reasons why pilots are trained using flight simulators rather than by flying real

aircraft.

1

2

3

[3]

20 Explain what is meant by the following terms.

Phishing

Pharming

Spam

[3]

15

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Use

21 When sending documents companies sometimes use email and sometimes use ordinary

post.

(a) Give two reasons why email might be used.

1

2

[2]

(b) Give two reasons why ordinary post might be used.

1

2

[2]

16





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