Which of the following output devices was common among the computing devices of the 19th century?
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(B)
Plotter
3
The pre-computing age device which made use of beads and frames is?
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(A)
Abacus
4
The system unit houses the following components except?
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(A)
plotter
5
The system unit houses the following components except?
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(A)
plotter
6
During program execution in the central processing unit, the instruction is interpreted by the?
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(B)
control unit
7
The most important system software in a computer system is the?
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(C)
operating system
8
QBASIC keywords do not include?
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(A)
FIND B.
9
An icon, a graphic or a text in a document or a webpage that connects to another file or object is called a?
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(A)
hyperlink
10
The largest component in a spreadsheet is?
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(C)
workbook
11
Warm boot in computing is the same as?
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(D)
soft boot
12
The basic computer operation involves the following except?
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(A)
Access
13
The file that contains historical record is called a?
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(B)
master file
14
Random file organisation is also known as?
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(A)
direct file organisation
15
Which of the following options is not a data type?
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(D)
Valid data
16
The major components of a computer system are?
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(C)
hardware and software
17
The largest computer system in terms of processing power is A?
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(D)
super computer
18
Figure 1 is a logic gate. Use it to answer the question below.
The logic gate represented in Figure 1 is called
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(D)
OR gate
19
Identify the logic gate in figure 2
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(B)
NAND gate
20
Which of the following programs is an application specific?
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(C)
Word
21
The following programs are general-purpose application software except?
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(B)
Editor
22
The following are relational operators in QBASIC?
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(D)
=
23
The three levels of programming language?
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(C)
machine language low level language and high level language
24
which of the following network cables offers highest data transmission?
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(B)
Fibre optic
25
The following components are network interconnecting devices EXCEPT?
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(D)
webcam
26
Which of the following options is not an advantage of linear bus topology?
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(D)
Terminators are required at both ends of the
27
Which of the following components are data communication equipment?
I. Scanner ll. Hub lIl. Modem
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(C)
II and IIl only
28
The speed of data transfer in the computer can be determined in terms of?
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(D)
bus speed and storage media
29
The process of restarting the computer system is known as?
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(D)
warm booting
30
The ASCII chart control characters using numeric codes ranging from?
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(C)
0 to 127
31
A row in a database table is referred to as?
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(D)
record
32
The conversion of readable data to unreadable codes in order to prevent unauthorised access is known as?
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(B)
encryption
33
The algebraic equation for the AND gate with input variables A and B is?
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(A)
X = A.B
34
The command line prompt of MS-DOS operating system is represented as?
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(B)
C:\
35
The process of testing the logic of programs to ensure they give correct result is known as?
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(C)
flowcharting
36
The MS-Windows shortcut keys to initiate warm booting is?
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(B)
Ctrl+ Alt + Del
37
The number 28 in binary is?
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(D)
11100
38
Which of the following options is a biometric data?
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(D)
Pattern of eye iris
39
A site engineer intends to acquire a computer system. What factors Will he consider if he must choose a notebook computer over a desktop computer?
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(C)
Size, convenience and battery life
40
Use the logic truth table in figure 3 to answer question
X
Y
Z
0
0
1
0
1
1
1
0
1
1
1
0
Given that X and Y are input variables while Z is the output. The truth table in figure 3 represents?
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(C)
NOR gate
41
A logic gate contains three input variables. The total possible combination of the input variables is?
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(C)
8
42
The following are the guidelines for drawing flowcharts except that it?
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(C)
should follow a direction of right to left or bottom to top
43
Use the infomation belowto answer questions 42 and 43.
As a computer professional, you have just been con- tracted by a school to help them solve the problem they are facing in computing students' results.
The school currently runs a manual system. Time and accuracy of the result are the major concerns.
What would you advise the school to do?
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(A)
Automate the system
44
If you are given the contract, what would be your first step of action?
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(C)
Investigate the problem
45
Which of the following charts does not display the X and Y axes?
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(C)
Doughnut chart
46
The uses of spreadsheet packages include:
1. -Preparing organisation's logo; II. - Performing sensitivity analysis; III, - Preparing reports for senior manage- ment; IV. - Preparation of profit forecasts.
Which of the following options is true?
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(D)
II, Il and IV only
47
The common features of formula and function in spread- sheet are:
-Entry is preceded by = or + symbol I.
- They have fixed formats
- They operate with cell addresses
- Their results are displayed.
Which of the following options is/are true?
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(A)
I, II, III
48
One megabyte is equivalent to?
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(B)
1024 X 1024 bytes
49
Arrange the following spreadsheet window parts in a hierarchical order by size:
I. worksheet
II. cell
III. workbook
IV. Range
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(D)
II, IV, I and II
50
The statement in QBASIC that is used to add data at the end of existing sequential file is?
