# Information Technology Grade 12 P2 NSC June 2013 QP

> Grade 12 Information Technology Paper 2 question paper from the NSC June 2013, 29 pages. Read online or get the free PDF download, memo linked when available.

- Page: https://www.hlayiso.com/library/computer-studies-p2-bilingual-hg-2013-qp/e5fb0bb5-d9f6-4901-b603-44132cda90e5
- Updated: 2026-09-27
- Subject: Information Technology
- Grade: Grade 12
- Document type: Question paper
- Year: 2013
- Exam period: NSC June
- Paper: 2
- Curriculum: CAPS
- Pages: 29

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## About this document

Information Technology · Grade 12 · NSC June · 2013. Question paper, 29 pages. Read online or download the PDF.

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basic education

Department:
Basic Education
REPUBLIC OF SOUTH AFRICA

SENIOR CERTIFICATE EXAMINATION
SENIORSERTIFIKAAT-EKSAMEN

COMPUTER STUDIES / REKENAARSTUDIE
PAPER 2/ VRAESTEL 2

HIGHER GRADE / HOER GRAAD

2013

MARKS / PUNTE: 200

COMPUTER STUDIES/REKENAARSTUDIE HG : P2/V2 TIME / TYD: 3 hours / uur

7241

72412 |

This question paper consists of 15 pages. / Hierdie vraestel bestaan uit 15 bladsye.

X@5

ul

Copyright reserved / Kopiereg voorbehou IOAN A Please turn over / Blaai om asseblief

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Rekenaarstudie/HG/V2 2

DBE/2013
SSE

INSTRUKSIES EN INLIGTING

1. Beantwoord AL die vrae.

2. Die programmeringsvrae mag met potlood beantwoord word.

Koper vont MANA ALU sot

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INSTRUCTIONS AND INFORMATION
1. Answer ALL the questions.

fe The programming questions may be answered in pencil.

STA FUNNY A tiniihiiel

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VRAAG 1: MEERVOUDIGEKEUSE-VRAE

Verskeie opsies word as moontlike antwoorde op die volgende vrae gegee. Kies die
antwoord en skryf slegs die letter (A-D) langs die vraagnommer (1.1—1.10) in die
ANTWOORDEBOEK neer.

1.1 Watter tipe sein degenereer NIE oor lang afstande NIE?

A Serie

B_ Analoog
C Parallel
D_Digitaal

1.2 Watter EEN van die volgende verwys NIE na LAG (‘ROM’) nie?

A Stadiger as LSG (‘RAM’)

B_ Kan herprogrammeer word

C_ Tydelike geheue

D_ Meer kan in gleuwe op die moederbord ingeprop word

1.3 Hierdie topologie is die maklikste om te verander sonder om die netwerk te
onderbreek:

A Ster
B Bus
C_ Ring
D Gemeng

1.4 Watter EEN van die volgende is 'n netwerkprotokol?

A 'RAID'
B 'PSTN'
Cc ‘PX’

D 'ADSL'

ue Dit verbind 'n fisiese stertopologie met 'n ringtopologie:

A Versterker (‘repeater’)

B_ Aktiewe spil (‘active hub')
C_ Roeteerder (‘router’)

D_ Skakelaar (‘switch’)

1.6 Die tipe kabel wat totale weerstand teen enige elektromagnetiese of
tadiofrekwensiesteuring bied:

Gedraaide draadpaar (‘twisted pair’)

Koaksiale kabel (‘coaxial’)

Optiese vesel (‘fibre optic’)

Onafgeskermde gedraaide draadpaar (‘unshielded twisted pair’)

vuonaDYr

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QUESTION 1: MULTIPLE-CHOICE QUESTIONS

Various options are given as possible answers to the following questions. Choose the
answer and write only the letter (A-D) next to the question number (1.1—1.10) in the
ANSWER BOOK.

1.1

1.2

1.3

1.4

77

1.6

Which type of signal does NOT degrade over long distances?

A. Serial

B_ Analogue
C Parallel

D_ Digital

Which ONE of the following does NOT refer to ROM?

A Slower than RAM

B_ Can be re-programmed

C Temporary memory

D_ More can be plugged into slots on motherboard

This topology is the easiest to modify without disrupting the network:

A. Star
B Bus
C_ Ring
D_ Hybrid

Which ONE of the following is a network protocol?

A RAID
B PSTN
Cc IPX

D ADSL

This connects a physical star topology with a ring topology:

A_ Repeater
B_ Active hub
C Router

D_ Switch

The type of cable that offers total resistance to any electromagnetic or radio
frequency interference:

Twisted pair

Coaxial

Fibre optic

Unshielded twisted pair

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Cont esoved NAN 0 0 00 Pose tum over

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7 Hierdie toestelle kan pakkies oor veelvuldige netwerke stuur deur dieselfde

protokol te gebruik om die beste bestemming te bepaal:

A Passiewe spil (‘passive hub’)
B_ Roeteerders (‘routers’)

C  Deurgangspoorte ('gateways')
D_ Brde (‘bridges’)

77 Die poort wat gewoonlik gebruik word om 'n eksterne modem aan 'n
rekenaar te koppel:

A PS/2
B USB
C LPT

D COM

1.9 'n Werksomgewing waar gebruikers banksake aanlyn doen:

A __Intydse verwerking
B_ Tyddeling

C_ Bondelverwerking
D_ Multiverwerking

1.10 Stuur data op die styg en val van een kloktik:

Rambus

Sinchrone DRAM

DDR SDRAM

EDO-geheue (10 x 1) [10]

when

Kirn votooy LATVIAN] 222 2s

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1.7 These devices can switch packets across multiple networks using the same

protocol to determine the best destination:

A Passive hub
B_ Routers

C Gateways

D_ Bridges

1.8 The port that is usually used to connect an external modem to the computer:

A PS/2
B USB
C LPT

D COM

1.9 A working environment where users do banking online:

A_ Real-time processing
B_ Time sharing

C_ Batch processing

D_ Multiprocessing

1.10 Sends data on the rise and fall of one clock tick:

Rambus

Synchronous DRAM

DDR SDRAM

EDO memory (10 x 1) [10]

whem ie 2

Conroe A EH Peesetum over

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VRAAG 2: BOOLE-ALGEBRA

2.1 Gegee:

Cc Cc Cc Cc

00 01 1 10
A 1 d 4 B'
00 00
A 1 B
01 01
A 1 B
1 14
A 1 1 1 B'
10 10

D' D D D'

00 01 4 10

Teken die Karnaugh-diagram in jou ANTWOORDBOEK oor en vereenvoudig

na die minimum getal terme en letters. (5)
2.2 Die waarheidstabel is gegee:
X}/Y |Z F
0;0/0 0
0 0 d 1
0o;1)]0 0
o/;1/]1 1
1|;01;0 0
1|01] 1 0
4 1 | 0 1
d 1/1 1

2.2.1 Skryf F(X, Y, Z) in minterme. (2)

_ Vereenvoudig F algebraies. (6)

2.3 Teken 'n logikakring vir die som van 'n halfopteller. (3)
[16]

Se FAUNA OO AOU A Bia! om assebles
GAUTENG

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QUESTION 2: BOOLEAN ALGEBRA

2.1 Given:

C' C' Cc Cc

00 01 1 10
A' 1 1 1 B
00 00
A' 1 B
01 01
A 1 B
11 11
A 1 1 4 B'
10 10

D' D D D'

00 01 1 10

Draw the Karnaugh diagram in your ANSWER BOOK and simplify to the
minimum number of terms and literals. (5)

2.2 The truth table is given:

X|Y]Z F

0/;}01]0 0

o/;0oj 1 1

oO 8 0

Oo; 11 1

1 07; 0 0

1 0; 1 0

1 1 | 0 1

1 41} 1 1
2.2.1 Write F(X, Y, Z) in minterms. (2)
2.2.2 Simplify F algebraically. (6)
2.3 Draw a logic circuit for the sum of a half-adder. (3)

[16]

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VRAAG 3: REKENAARARGITEKTUUR

3.1

3.2

3.3

3.4

3.5

3.6

3.7

3.8

3.9

Kopiereg voorbehou

Geheue het 'n invloed op die werkverrigting van 'n rekenaar.

3.1.1

3.2.1

3.2.2

3.2.3

Definieer kasgeheue.
Waar word kasgeheue gevind?

In vergelyking met RAM, gebruik ons slegs 'n klein hoeveelheid
kasgeheue. Waarom is dit so?

Buiten die databus, noem die TWEE ander busse waaruit die
stelselbus bestaan.

Hoe word die spoed en werkverrigting van 'n rekenaar beinvioed as
die databus groter gemaak word?

Wat is die funksie van 'n register?

Verduidelik die verskil tussen die volgende deur 'n kort beskrywing van elkeen

te gee:

3.3.1

3.3.2

Klokvermenigvuldiging

Oorklok (‘overclocking’)

Gee TWEE redes waarom die grootte van die transistors in die SVE (‘CPU')
die spoed van die verwerker beinvioed.

Vandag se rekenaars gebruik USB-poorte.

3.5.1

3.5.2

Waarvoor staan USB?

Gee TWEE voordele van USB-poorte op 'n rekenaar.

Wat is die doel van die AGP-gleuf op 'n rekenaar?

Watter TWEE faktore bepaal die spoed van 'n hardeskyf?

Wat is die verskil tussen 'n 32 bis-rekenaar en 'n 64 bis-rekenaar?

3.9.1

3.9.2

Definieer pyplynverwerking.

Noem EEN probleem wat by pyplynverwerking kan voorkom en
verduidelik hoe die rekenaar hierdie probleem hanteer.

TT Bieal om asseblet

(2)
(1)

(2)
(2)

(2)

(2)
(1)
(2)
(2)
(3)

(2)

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QUESTION 3: COMPUTER ARCHITECTURE

3.1
3.1.1
3.1.2
3.1.3
3.2 3.2.1
3.2.2
3.2.3
3.3
each:
3.3.1
3.3.2
3.4
3.5
3.5.1
3.5.2
3.6
3.7
3.8
3.9 3.9.1
3.9.2
Copyright reserved

Memory affects the performance of a computer.

Define cache memory.
Where is cache memory found?

Compared to RAM, we use only a small amount of cache memory.
Why is this so?

Besides the data bus, name the other TWO buses that make up the
system bus.

How is the speed and performance of a computer affected by
increasing the size of the data bus?

What is the function of a register?

Explain the difference between the following by giving a brief description of

Clock multiplication

Overclocking

Give TWO reasons why the size of the transistors inside the CPU affects the
speed of the processor.

Today's computers use USB ports.

What does USB stand for?

Give TWO advantages of having USB ports on a computer.

What is the purpose of the AGP slot on a computer?

Which TWO factors determine the speed of a hard drive?

What is the difference between a 32-bit computer and a 64-bit computer?

Define pipelining.

State ONE problem that could occur with pipelining and explain how
the computer deals with this problem.

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GAUTENG

(2)
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(1)

(2)

(2)
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(2)
(2)

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(1)
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(1)
(2)
(2)
(3)

(2)

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3.10 Gee vir elk van die terme hieronder (a) 'n beskrywing van die term en (b) EEN
voordeel van die tegnologie:

3.10.1. Hiperinryging (‘hyperthreading')
3.10.2 Multi-inryging (‘multithreading’)
3.10.3 Firewire

3.10.4 'PCI Express’ (8)
[37]

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3.10 For each of the terms below, give (a) a description of the term and (b) ONE

advantage of the technology:
3.10.1. Hyperthreading
3.10.2 Multithreading
3.10.3 Firewire

3.10.4 PCI Express (8)
[37]

Coprosned TTC en

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VRAAG 4: STELSELPROGRAMMATUUR

41

4.2

4.3

44

4.5

4.6

4.7

48

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GAUTENG

4.11 Noem die TWEE komponente van 'n bedryfstelsel.
4.1.2 Noem die DRIE doelwitte van 'n bedryfstelsel.
4.2.1 Wat is 'n ingebedde bedryfstelsel?

4.2.2 Gee 'n voorbeeld van 'n ingebedde bedryfstelsel.

Sommige bedryfstelsels gebruik virtuele geheue om te voorkom dat 'n hele
program in die geheue gelaai word voordat dit uitgevoer word.

4.3.1 Waar word virtuele geheue gevind?

4.3.2 Verduidelik hoe 'n rekenaar virtuele geheue gebruik deur te verwys
na paginering (‘paging') en sparteling (‘thrashing’).

Hoe gebruik die bedryfstelsel die volgende vir kommunikasie wanneer
dokumente gedruk word?

4.4.1 Buffer
4.4.2 Databuffer (‘spooler’)
4.5.1 Wat is die verskil tussen 'n kompileerder en 'n interpreteerder?

4.5.2 Gee 'n voorbeeld van EEN programmeringstaal wat 'n kompileerder
gebruik.

Verduidelik kortliks, deur na 'n voorbeeld te verwys, wat die tegniek van
multitaakverwerking behels.

Noem TWEE van die meer komplekse funksies van bedienerprogrammatuur
wat nie deel van gewone bedryfstelsels is nie.

Stoorbeheer is 'n belangrike taak van die bedryfstelsel.

4.8.1 Die léerstelsel hou tred met die attribute van 'n léer. Gee TWEE
voorbeelde van attribute wat gestoor kan word.

4.8.2 Verduidelik waarom skyfdefragmentering gedoen moet word.

(1)

(3)

(2)
(2)
(2)

(1)

(2)

(2)

(2)

(2)
[27]

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QUESTION 4: SYSTEM SOFTWARE

4.1

4.2

4.3

4.4

4.5

4.6

4.7

48

4.1.1 Name the TWO components of an operating system.
4.1.2 State the THREE goals of an operating system.
4.2.1 What is an embedded operating system?

4.2.2 Give an example of an embedded operating system.

Some operating systems use virtual memory to avoid loading a complete
program into memory before executing it.

4.3.1 Where is virtual memory found?

4.3.2 Explain how a computer uses virtual memory by referring to paging
and thrashing.

How does the operating system use the following for communication when
printing documents?

4.41 Buffer
44.2 Spooler
4.5.1 What is the difference between a compiler and an interpreter?

4.5.2 Give an example of ONE programming language that uses a
compiler.

Briefly explain, by referring to an example, what the technique of multitasking
entails.

Name TWO of the more complex functions of server software that are not part
of normal operating software.

Storage management is an important task of the operating system.

4.8.1 The file system keeps track of the attributes of a file. Give TWO
examples of attributes that could be stored.

4.8.2 Explain why disk defragmentation should be carried out.

Cortese TU ee

(2)
(3)
(2)
(1)

(1)

(3)

(2)
(2)
(2)

(1)

(2)

(2)

(2)

(2)
[27]

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VRAAG 5: DATAKOMMUNIKASIE

5.1 Brei die volgende terme uit:
5.1.1 ‘FDDI' (1)
52 NIC (1)
5.2 Die Internet en e-pos gebruik pakkieskakeling om data te stuur.
5.2.1 Watter protokol word gebruik om aan die Internet te koppel? (1)
5.2.2 Verduidelik hoe pakkieskakeling werk. (5)
5.3 Netwerksekuritelt is belangrik om te verseker dat data nie beskadig of gesteel
word nie.

5.3.1 Hoe kan die netwerkadministrateur toegang tot data beperk? Noem
DRIE maniere. (3)

5.3.2 Hoe word data-integriteit deur 'n netskans (‘firewall’) gewaarborg? (2)

5.4 Internetkonnektiwiteit gebruik 3G- of ADSL-tegnologie. Gee EEN voordeel van
ADSL bo 3G-tegnologie. (2)

ae 'n Netwerk vir die Geskiedenisklaskamers sal 'n bediener gebruik en een
drukker voor in 'n klaskamer benodig. Alle gebruikers moet toegang tot die
drukker en tot die Internet hé.

Verduidelik die doel van die volgende hardeware in die netwerk:

5.5.1 100Mbps Ethernet-netwerkkoppelkaarte (1)

5.5.2 UTP-kabels (1)

5.5.3 Skakelaar (‘switch’) (2)
5.6 Leerders het slimfone met Bluetooth-tegnologie en moet dokumente na die

drukker aflaai.

5.6.1 Wat is die voordeel van Bluetooth-tegnologie vir toestelle in

verskillende plekke? (1)
5.6.2 Buiten om léers en foto's na 'n ander toestel te stuur, gee EEN
ander voorbeeld van 'n praktiese gebruik van Bluetooth-tegnologie. (1)
hi 5.7.1 Wat is die gewildste LAN-argitektuur wat deesdae gebruik word? (1)

5.7.2 Verduidelik hoe data van rekenaar tot rekenaar gestuur word in
hierdie tipe LAN deur die CSMA/CD-metode te gebruik. (4)

Kor voter LU UH set

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QUESTION 5: DATA COMMUNICATION

5.1

5.2

5.3

5.4

5.5

5.6

5.7

Expand the following terms:

54] FDDI

5.1.2 NIC

The Internet and e-mail use packet switching to send data.

5.2.1 What protocol is used to connect to the Internet?

5.2.2 Explain how packet switching works.

Network security is important to ensure that data is not damaged or stolen.

5.3.1 How can the network administrator limit access to data? Give
THREE ways.

5.3.2 How does a firewall ensure data integrity?

Internet connectivity uses 3G or ADSL technology. Give ONE advantage of
ADSL over 3G technology.

A network for the History classrooms will run on a server and will need one
printer at the front of a classroom. All users will need access to the printer and
to the Internet.

Explain the purpose of the following hardware in the network:

5.5.1 100Mbps Ethernet network cards

| UTP cabling

5.5.3 Switch

Learners have smartphones with Bluetooth technology and need to download
documents to the printer.

5.6.1 What is the advantage of Bluetooth technology for devices in
different venues?

5.6.2 Other than transferring files and photos to another device, give ONE
other example of a practical use of Bluetooth technology.

5.7.1 What is the most popular LAN architecture used today?

5.7.2 Explain how data is passed from computer to computer in this type
of LAN using the CSMA/CD method.

Cony rose NAN A 0 0 Pesotum or

(1)
(1)

(1)
(5)

(3)
(2)

(2)

(1)
(1)
(2)

(1)
(1)

(4)

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5.8 5.8.1 Noem EEN nadeel van die gebruik van satellietkommunikasie. (1)

5.8.2 Buiten  selfoontegnologie, gee EEN voorbeeld van waar
satellietkommunikasie vandag algemeen gebruik word. (1)

5.9 GPRS verleen toegang tot die Internet. Noem DRIE voordele van die gebruik

van hierdie tegnologie. (3)
5.10 Wat is die doel van 'RAID'-tegnologie en hoe werk dit? (3)
[34]

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5.8 5.8.1 State ONE disadvantage of using satellite communication. (1)

5.8.2 Besides cellphone technology, give ONE example of where satellite
communication is commonly used today. (1)

5.9 GPRS allows one Internet access. State THREE advantages of using this

technology. (3)
5.10 | What is the purpose of RAID technology and how does it work? (3)
[34]

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VRAAG 6: SOSIALE IMPLIKASIES

6.1

6.2

6.3

6.4

6.5

6.6

6.7

6.8

6.9

Verskeie metodes word gebruik om die sekuriteit van inligting op die Internet
te waarborg. Verduidelik hoe die volgende metodes vir iemand toegang tot
inligting op die Internet gee:

6.1.1 Sleutelstawing ('keylogging’)

6.1.2 Strikroof (‘phishing’)

6.1.3 ‘BYOD' (‘bring your own device to work’)

Verduidelik hoe asimmetriese enkripsie werk.

Die Wet op Elektroniese Kommunikasie, 2002, (Wet 25 van 2002) maak
voorsiening vir die regte van individue.

Wat is die doel van die ELO (‘EULA’)?

VoIP is tegnologie wat deesdae algemeen gebruik word.
6.4.1 Waarvoor staan VoIP?

6.4.2 Gee EEN voordeel van VoIP.

Wat is die implikasies van sagtewareroof vir die ontwikkelaars van
rekenaarprogramme?

Gee EEN voorbeeld van gratis en oopbronprogrammatuur wat vir alledaagse
woordverwerking gebruik kan word.

Gestremde mense word deur baie maatskappye in diens geneem. Noem EEN
toestel wat 'n fisies gestremde persoon kan help om 'n rekenaar effektief te
gebruik.

Slimkaarte (‘smart cards') word algemeen in Suid-Afrika gebruik.

6.8.1 Wat is 'n slimkaart?

6.8.2 Gee EEN voorbeeld en verduidelik kortliks die voordeel van die
gebruik van slimkaarte.

Ons werk in 'n toenemend mobiele wéreld.
6.9.1 Wat is 'n mobiele kantoor?

6.9.2 Noem EEN nadeel van 'n mobiele kantoor.

cee amie CUI AAEN UAE Bieal om assebiie

(1)
(1)
(1)
(2)

(1)

(1)

(1)

(2)

(1)

(1)

(1)

(2)

(1)

(1)
[17]

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QUESTION 6: SOCIAL IMPLICATIONS

6.1

6.2

6.3

6.4

6.5

6.6

6.7

6.8

6.9

Several methods are used to ensure security of information on the Internet.
Explain how the following methods allow someone access to information on
the Internet:

6.1.1 Keylogging

6.1.2 Phishing

6.1.3 BYOD (bring your own device to work)

Explain how asymmetrical encryption works.

The Electronic Communications Act, 2002 (Act 25 of 2002) makes provision
for the rights of individuals.

What is the purpose of the EULA?

VoIP is technology that is widely used today.
6.4.1 What does VoIP stand for?

6.4.2 Give ONE advantage of VoIP.

What are the implications of software piracy for the developers of computer
software?

Give ONE example of free and open-source software that can be used for
day-to-day word-processing.

Disabled people are employed in many companies. State ONE device that
could assist a physically disabled person to use a computer effectively.

Smart cards are widely used in South Africa.
6.8.1 What is a smart card?

6.8.2 Give ONE example and briefly explain the advantage of using smart
cards.

We work in an increasing mobile world.
6.9.1 What is a mobile office?

6.9.2 State ONE disadvantage of a mobile office.

Ca Mts CHOTA OAR UA Pease lum over

(1)
(1)
(1)
(2)

(1)

(1)

(1)

(2)

(1)

(1)

(1)

(2)

(1)

(1)
[17]

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VRAAG 7: DELPHI-/TURBO PASCAL-PROGRAMMERING

7 'n Program vereis dat die gebruiker die graad van 'n hoérskoolleerder intik.
Gebruik hierdie situasie om die verskil tussen geldige en korrekte data te
verduidelik. (2)

7.2 Gegee:

SENTENCE:= 'I am writing this exam';

Skryf die programstelling(s) om die woord ‘writing’ uit die string SENTENCE te
verwyder. (4)

7.3 Watter van die volgende herhalingstrukture sal die geskikste wees vir die
aksies hieronder?

(a) While ... do begin ... end;
(b) For ... do begin ... end;
(c) Repeat ... until ...;

7.3.1 Lees deur items in 'n teksléer. (2)
7.3.2 Genereer 'n lys van 20 ewekansige nommers groter as 100. (2)
7.4 Ses ewekansige nommers moet geselekteer word vir 'n bonusprys by die

skool se atletiekdag. Slegs die nommers wat op die toegangskaartjies verskyn
sal geldige prysnommers wees.

Al die toegangskaartjies se nommers is in 'n skikking genaamd PRYSE
ingelees. Daar is 'n onbekende getal inskrywings (‘count’).

Skryf die programkode vir die prosedure select om SES ewekansige

nommers tussen 1 en die getal inskrywings te genereer en stoor die

wennommer in 'n ander skikking genaamd WENNERS. Vertoon die inhoud

van die skikking WENNERS. (8)
[18]

TT FAIA AO OE Blea! om assebler

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QUESTION 7: DELPHI/TURBO PASCAL PROGRAMMING

7.1 A program requires the user to enter the grade of a high school learner. Use

this situation to explain the difference between valid and correct data. (2)
7.2 Given:

SENTENCE:= 'I am writing this exam';

Write the program statement(s) to remove the word ‘writing’ from the string
SENTENCE. (4)

7.3 Which of the following loop structures would be most suitable for the actions
below?

(a) | While ... do begin ... end;
(b) For... do begin ... end;
(c) Repeat... until ...;

le Read through items in a text file. (2)
7.3.2 Generate a list of 20 random numbers greater than 100. (2)

7.4 Six random numbers need to be selected for a spot prize at the school sports
day. Only those numbers that appear on entry tickets will be valid prize
numbers.

All the entry ticket numbers have been read into an array named PRIZES.
There is an unknown number of entries (count).

Write the program code for the procedure select to generate SIX random
numbers between 1 and the number of entries and store that winning number
in another array named WINNERS. Display the contents of the array
WINNERS. (8)

[18]

Coyhosaned CAN NAN) 35

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VRAAG 8: DELPHI-/TURBO PASCAL-PROGRAMMERING

8.1 Gegee: 'n 2-dimensionele skikking genaamd LETTERS.

A B c D E R F D

Ww Ww WwW = R 7 7 G

H J K L P R T Y

X xX Zz xX {eo} F G H

A Ww Q E R I U T

$s D EF G J B Y H
8.1.1 Noem die tipe verklaring vir die tweedimensionele —skikking

LETTERS, wat 6 rye en 8 kolomme sal bevat om karakters te stoor. (3)

8.1.2

Skryf die programkode-segmente om die getal H's in die skikking
LETTERS te bepaal. (7)

8.2 'n Teksléer, EMAIL.TXT, is geskep met die volgende inligting:

"Ek benodig opleiding in hoe om met kodes te werk. Kontak my asseblief
dringend om my te help.”

Die volgende prosedure CODEIT word gegee. Die doel is om alle klinkers uit
die teks te verwyder, die getal klinkers wat verwyder is, te tel en om die teks
reél vir reél om te draai. Vertoon die gekodeerde boodskap en die getal

klinkers.

8.2.1

8.2.2

8.2.3

8.2.4

8.2.5

Kopiereg voorbehou

Beantwoord die vrae wat volg om die prosedurekode te voltooi.

Procedure CODEIT(var sentence:string;var
nom: integer) ;

Verduidelik waarom 'sentence' 'n verwysingsparameter is. (2)

Var t£ : text;

Verklaar enige ander veranderlikes wat nodig is. (2)
Begin

Verbind die interne léer met die eksterne léer. (2)
Reset (tf);

Laat die gebruiker toe om deur die teksléer te werk. (1)
Begin

Lees een reél uit die léer. (2)

CANIN AOEL OU A A Bieat om asseblet
GAUTENG

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Computer Studies/HG/P2 13 DBE/2013

SCE

QUESTION 8: DELPHI/TURBO PASCAL PROGRAMMING

8.1 Given: A 2-dimensional array called LETTERS.

OD |x |x |S |>

TIOIN|X/S|0

O/—|1|A\4 |v

C/O \j4a/<)7
Zla\|xrl\<|@\|o

o/s|x|c |S |w
@ |m |< |r jm jo
q|/0|0/a|m

Y

8.1.1

8.1.2

State the type declaration for the two-dimensional array LETTERS,
that will have 6 rows and 8 columns to store characters.

Write the program code segments to determine the number of Hs in
the array LETTERS.

8.2 A text file, EMAIL.TXT has been created with the following information:

"| really need some training in how to work with codes. Please contact me
urgently to help me in my endeavour."

The following procedure CODEIT is given. The purpose is to remove all
vowels from the text, to count the number of vowels removed and to reverse
the text line by line. Display the coded message and number of vowels.
Answer the questions that follow to complete the procedure code.

8.2.1

8.2.2

8.2.3

8.2.4

8.2.5

Copyright reserved

Procedure CODEIT(var sentence:string;var
num: integer) ;

Explain why 'sentence' is a reference parameter.
Ver Gh text.

Declare any other variables that are needed.
Begin

Link the internal file to the external file.

Reset (tf);

Allow the user to work through the text file.
Begin

Read one line from the file.

(NN AON C0 A Pease turn over
G4UTENG

(7)

(2)

(2)

(1)

(2)

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8.2.6 Verwyder enige klinkers, draai die teks om en tel die getal klinkers.

end; (9)
8.2.7 Maak die léer toe. (1)
8.2.8 Stuur die inligting terug na die hoofprogram.

End; (2)
[31]

Koper voted MUNN NNN se

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SCE

8.2.6 Remove any vowels, reverse the text and count the number of

vowels.
(9)
end;
8.2.7 Close the file. (1)
8.2.8 Send the information back to the main program.
End; (2)
[31]

Coprnosned NN UANN)35

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SSE

VRAAG 9: DELPHI-/TURBO PASCAL-PROGRAMMERING

Die dataléer OLYMPICS.DAT bestaan uit die naam en punte van elke deelnemende
land. Voorbeeld van data :

South Africa 29
Kenya 35
Sudan 1

Die volgende veranderlikes is verklaar:

Type REC = record
Country : string[25];
Points: integer;
End;

Var

PyvanLand : file of REC;

LandData : REC;

Str10 : string[10];

{die léer is toegewys en herset}

9.1 Skryf die programstellings om die 10° rekord in die dataléer te lees. (3)

9.2 Voltooi die funksie hieronder wat 'n rekord uit die hoofprogram ontvang en
nagaan of enige punte aan die rekord toegeken is of nie. Skryf die volledige

funksie uit.

function Nagaan(.........) : boolean;

begin

«.. .programkode

end; (7)
[10]

TOTAAL: 200

Korg voteou AA 0

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Computer Studies/HG/P2 15 DBE/2013
SCE

QUESTION 9: DELPHI/TURBO PASCAL PROGRAMMING

The data file OLYMPICS.DAT consists of the name and points of each participating
country. Example of information:
South Africa 29

Kenya 35
Sudan 1

The following variables have been declared:

Type REC = record
Country : string[25];
Points: integer;
End;
var
PofCountry : file of REC;
CountryData : REC;

Str10 : string[10];
{the file has been assigned and reset}

9.1 Write the program statements to read the 10" record in the data file. (3)
9.2 Complete the function below that receives a record from the main program

and checks whether any points have been assigned to the record. Write out
the complete function.

function Checking () 3): boolcan,
begin
w..program code
end; (7)
[10]
TOTAL: 200

Copyont reseed Ln

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