Which of the following output devices was common among the computing devices of the 19th century?
Απάντηση
(B)
Plotter
3
The pre-computing age device which made use of beads and frames is?
Απάντηση
(A)
Abacus
4
The system unit houses the following components except?
Απάντηση
(A)
plotter
5
The system unit houses the following components except?
Απάντηση
(A)
plotter
6
During program execution in the central processing unit, the instruction is interpreted by the?
Απάντηση
(B)
control unit
7
The most important system software in a computer system is the?
Απάντηση
(C)
operating system
8
QBASIC keywords do not include?
Απάντηση
(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?
Απάντηση
(A)
hyperlink
10
The largest component in a spreadsheet is?
Απάντηση
(C)
workbook
11
Warm boot in computing is the same as?
Απάντηση
(D)
soft boot
12
The basic computer operation involves the following except?
Απάντηση
(A)
Access
13
The file that contains historical record is called a?
Απάντηση
(B)
master file
14
Random file organisation is also known as?
Απάντηση
(A)
direct file organisation
15
Which of the following options is not a data type?
Απάντηση
(D)
Valid data
16
The major components of a computer system are?
Απάντηση
(C)
hardware and software
17
The largest computer system in terms of processing power is A?
Απάντηση
(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
Απάντηση
(D)
OR gate
19
Identify the logic gate in figure 2
Απάντηση
(B)
NAND gate
20
Which of the following programs is an application specific?
Απάντηση
(C)
Word
21
The following programs are general-purpose application software except?
Απάντηση
(B)
Editor
22
The following are relational operators in QBASIC?
Απάντηση
(D)
=
23
The three levels of programming language?
Απάντηση
(C)
machine language low level language and high level language
24
which of the following network cables offers highest data transmission?
Απάντηση
(B)
Fibre optic
25
The following components are network interconnecting devices EXCEPT?
Απάντηση
(D)
webcam
26
Which of the following options is not an advantage of linear bus topology?
Απάντηση
(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
Απάντηση
(C)
II and IIl only
28
The speed of data transfer in the computer can be determined in terms of?
Απάντηση
(D)
bus speed and storage media
29
The process of restarting the computer system is known as?
Απάντηση
(D)
warm booting
30
The ASCII chart control characters using numeric codes ranging from?
Απάντηση
(C)
0 to 127
31
A row in a database table is referred to as?
Απάντηση
(D)
record
32
The conversion of readable data to unreadable codes in order to prevent unauthorised access is known as?
Απάντηση
(B)
encryption
33
The algebraic equation for the AND gate with input variables A and B is?
Απάντηση
(A)
X = A.B
34
The command line prompt of MS-DOS operating system is represented as?
Απάντηση
(B)
C:\
35
The process of testing the logic of programs to ensure they give correct result is known as?
Απάντηση
(C)
flowcharting
36
The MS-Windows shortcut keys to initiate warm booting is?
Απάντηση
(B)
Ctrl+ Alt + Del
37
The number 28 in binary is?
Απάντηση
(D)
11100
38
Which of the following options is a biometric data?
Απάντηση
(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?
Απάντηση
(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?
Απάντηση
(C)
NOR gate
41
A logic gate contains three input variables. The total possible combination of the input variables is?
Απάντηση
(C)
8
42
The following are the guidelines for drawing flowcharts except that it?
Απάντηση
(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?
Απάντηση
(A)
Automate the system
44
If you are given the contract, what would be your first step of action?
Απάντηση
(C)
Investigate the problem
45
Which of the following charts does not display the X and Y axes?
Απάντηση
(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?
Απάντηση
(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?
Απάντηση
(A)
I, II, III
48
One megabyte is equivalent to?
Απάντηση
(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
Απάντηση
(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?
