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A BOTSWANA EXAMINATIONS COUNCIL
Botswana General Certificate of Secondary Education
COMPUTER STUOIES 0597/02
Paper 2
October/November 2018
2 hours 30 minutes
Additional Malenals Answer Paper
REAO THESE INSTRUCTIONS FIRST
Write your answers on the separate answer paper prOVIded.
Write your Centre number, candIdate number and name on each sheet of answer paper you use.
Do not use staples, paper clips, htghlighters. glue or correction fluid.
Answer all questions.
At the end of the examination, fasten alt of your work securely together using the string provided.
The number of marks is given in brackets ( ) at the end of each question or part question.
The total of the marks for thIs paper is 100
r!\·;:.; This document consists of 6 printed pages and 2 blank pages.
~
[Turn over
C BEC 2018 •
, 2
Answer all questions.
1 List three components of a Central Processing Unit. [31
2 (a) State two ways computers can be used for entertainment. [2J
(b) State two effects of neglecting to care for computers. [2J
3 The statements below, describe different methods of data collection.
(a) The data collector goes to the company and studies the relevant company's records
(b) The data collector goes to the people working in the company and asks them questions
{e} The data collector goes to the company and looks at how things are done, making notes.
Copy and complete the table below by choosing the appropriate statement that describes each
method. [2J
Method Statement
Interview
Observation
Literature review
4 List three methods of capturing data. (3J
5 State the data transmission modes used by the following communication methods.
{a} Telephone calls [1 J
(b) News broadcasted over the television [1 J
6 Define the following terms and give one example for each:
(a) Software [2J
(b) File [2J
(e) Protocol (2J
(d) Computer Aided Leaming (CAL) [2J
(e) Network topology [2J
C BEC 2018 0597102/OfNJ18
, 3
7 Give one difference between each of the following pairs of terms:
(a) RAM and ROM [1 J
(b) Verification and validation [1 J
(c) Analogue data and digital data [1 J
8 List three factors used to categorise computers. [3]
9 State two reasons for coding data. [2]
10 (a) State two methods of backing up data. [2J
(b) Describe each of the methods stated in 10(a). [2]
'- 11 (a) Describe a single user system. [1]
(b) Describe how a multi-user system works. [2]
(e) State two applications of real time systems. [2]
12 List any two communication and information systems. [2]
13 Statistics Botswana needs application software that will accept population census data,
count the number of females in different age groups and generate several types of graphs.
The information is to be presented to a large group of people using presentation software.
(a) State the most suitable application software that can be used to generate the graph. [1]
(b) Justify your answer in 13(a). [1J
(c) State one suitable output device that can be used in presenting the information. [1)
14 Bophelong Clinic patient details are collected using a manual form. The details collected
are: Patient_no, Surname, Name, Gender, Date _oCbirth, Place_oCbirth and occupation.
The details collected are used to produce a patient card. At the end of the month, the
patients are counted according to gender and a report is made. A systems analyst is
hired to computerise this system.
(a) State any two inputs in this system. [2]
(b) State any two processes in this system. [2J
(c) State any two outputs from the system. [2J
(d) State two benefits to the clinic of computerising this system. [2J
(e) State one reason why Bophelong clinic employees' skills need to be upgraded. [1 J
,,.,
...~'
~" (f) State two ways the users of this system can be supported. [2]
C BEC 2018 0597102JQIN/18 [Turn over
, 4
15 (a) State three common uses oflhe internet. [3J
(b) A computer studies laboratory has been connected to the internet. One of the implications
of using the internet is computer virus attack.
(i) State three ways a computer virus can be introduced into the computers in the
laboratory. [3J
(ii) State two ways computers in the laboratory can be protected. [2]
(iii) State two methods of eradicating computer virus. [2]
16 A system has the following fields: Patient_No, Surname and Date_oCBirth.
The Patient_No has four digits ranging between 1000 and 9999. Date_oCBirth
is of the format ddJmmlyyyy. Copy and complete the file structure below.
Field name Field size Data type Validation
technique
applied
Patient No
Surname 20 No validation
Date_oCBirth 10
[6J
17 A hospital uses an expert system for medical diagnosis.
Describe how the system can be used to diagnose a patient. [3J
r:·('~
~
o SEC 2018 0597102IOfNI18
A BOTSWANA EXAMINATIONS COUNCIL
Botswana General Certificate of Secondary Education
COMPUTER STUOIES 0597/02
Paper 2
October/November 2018
2 hours 30 minutes
Additional Malenals Answer Paper
REAO THESE INSTRUCTIONS FIRST
Write your answers on the separate answer paper prOVIded.
Write your Centre number, candIdate number and name on each sheet of answer paper you use.
Do not use staples, paper clips, htghlighters. glue or correction fluid.
Answer all questions.
At the end of the examination, fasten alt of your work securely together using the string provided.
The number of marks is given in brackets ( ) at the end of each question or part question.
The total of the marks for thIs paper is 100
r!\·;:.; This document consists of 6 printed pages and 2 blank pages.
~
[Turn over
C BEC 2018 •
, 2
Answer all questions.
1 List three components of a Central Processing Unit. [31
2 (a) State two ways computers can be used for entertainment. [2J
(b) State two effects of neglecting to care for computers. [2J
3 The statements below, describe different methods of data collection.
(a) The data collector goes to the company and studies the relevant company's records
(b) The data collector goes to the people working in the company and asks them questions
{e} The data collector goes to the company and looks at how things are done, making notes.
Copy and complete the table below by choosing the appropriate statement that describes each
method. [2J
Method Statement
Interview
Observation
Literature review
4 List three methods of capturing data. (3J
5 State the data transmission modes used by the following communication methods.
{a} Telephone calls [1 J
(b) News broadcasted over the television [1 J
6 Define the following terms and give one example for each:
(a) Software [2J
(b) File [2J
(e) Protocol (2J
(d) Computer Aided Leaming (CAL) [2J
(e) Network topology [2J
C BEC 2018 0597102/OfNJ18
, 3
7 Give one difference between each of the following pairs of terms:
(a) RAM and ROM [1 J
(b) Verification and validation [1 J
(c) Analogue data and digital data [1 J
8 List three factors used to categorise computers. [3]
9 State two reasons for coding data. [2]
10 (a) State two methods of backing up data. [2J
(b) Describe each of the methods stated in 10(a). [2]
'- 11 (a) Describe a single user system. [1]
(b) Describe how a multi-user system works. [2]
(e) State two applications of real time systems. [2]
12 List any two communication and information systems. [2]
13 Statistics Botswana needs application software that will accept population census data,
count the number of females in different age groups and generate several types of graphs.
The information is to be presented to a large group of people using presentation software.
(a) State the most suitable application software that can be used to generate the graph. [1]
(b) Justify your answer in 13(a). [1J
(c) State one suitable output device that can be used in presenting the information. [1)
14 Bophelong Clinic patient details are collected using a manual form. The details collected
are: Patient_no, Surname, Name, Gender, Date _oCbirth, Place_oCbirth and occupation.
The details collected are used to produce a patient card. At the end of the month, the
patients are counted according to gender and a report is made. A systems analyst is
hired to computerise this system.
(a) State any two inputs in this system. [2]
(b) State any two processes in this system. [2J
(c) State any two outputs from the system. [2J
(d) State two benefits to the clinic of computerising this system. [2J
(e) State one reason why Bophelong clinic employees' skills need to be upgraded. [1 J
,,.,
...~'
~" (f) State two ways the users of this system can be supported. [2]
C BEC 2018 0597102JQIN/18 [Turn over
, 4
15 (a) State three common uses oflhe internet. [3J
(b) A computer studies laboratory has been connected to the internet. One of the implications
of using the internet is computer virus attack.
(i) State three ways a computer virus can be introduced into the computers in the
laboratory. [3J
(ii) State two ways computers in the laboratory can be protected. [2]
(iii) State two methods of eradicating computer virus. [2]
16 A system has the following fields: Patient_No, Surname and Date_oCBirth.
The Patient_No has four digits ranging between 1000 and 9999. Date_oCBirth
is of the format ddJmmlyyyy. Copy and complete the file structure below.
Field name Field size Data type Validation
technique
applied
Patient No
Surname 20 No validation
Date_oCBirth 10
[6J
17 A hospital uses an expert system for medical diagnosis.
Describe how the system can be used to diagnose a patient. [3J
r:·('~
~
o SEC 2018 0597102IOfNI18
