Which of the following output devices was common among the computing devices of the 19th century?
پاسخ دهید
(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?
پاسخ دهید
(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?
پاسخ دهید
(C)
8
42
The following are the guidelines for drawing flowcharts except that it?
پاسخ دهید
(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?
