Which of the following represents features of a computer?
I. It is constructed from electronics components.
II. It has self regeneration capability.
IlI. It has facility for storage of data and programs.
IV. It has provision for input and output data.
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(C)
I, IIl and IV only
3
Arrange in a hierarchical order by date, the following inventions: I. slide rule; Il. pascaline; IIl, analytical engine; v. difference engine.
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(A)
I, lI, IV and llI
4
Which of the following is true about raw data?
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(D)
It cannot be relied on to make decision.
5
Which of the following was used by Joseph Marie Jacquad in inventing the Loom?
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(A)
Punched card
6
Which generation of computers used vaccum tubes in their circuitry?
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(A)
First generation
7
The full meaning of the acronym ENIAC is?
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(B)
Electronic Numerical Integrator and Computer
8
The primary memory of the computer can be divided into?
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(D)
random access memory and read only memory.
9
A common communication pathway shared by hard- ware components in the computer is called?
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(A)
bus
10
Which of the following can be described as the brain of the computer hardware?
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(B)
microprocessor
11
Which of the following is not a computer output device?
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(A)
Disk
12
Data to be processed by the microprocessor is temporarily stored in the?
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(D)
random access memory.
13
The smallest unit of information representation which is addressable on the computer memory is?
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(D)
8 bits
14
Software is referred to as the?
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(A)
generic term for computer programs
15
The software whose output is intended for the human user is called?
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(A)
application software
16
The parts of the taskbar include: I recycle bin Il start button lII system tray IV quick launch toolbar
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(C)
II, Il and IV only
17
The similarities between main memory and registers is that they are: I volatile Il under the direct control of the user ll protected by the system unit lIV for system
use only?
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(B)
I, Ill and IV only
18
A pictorial representation of the logic of a program is called?
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(B)
flowchart
19
A subroutine is called in a flowchart through the use of?
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(C)
process
20
The symbol used to represent an execution flow in a flowchart is?
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(D)
D
21
A suitable BASIC notation for the expression mc\(^2\) is?
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(A)
m * c^2
22
Use the BASIC program below to answer questions 23 to 25
10 LET K = 2
20 LET L = 9
30 LET SUM = 0
40 FOR J = K TO STEP 2
50 SUM = SUM + J\(^2\)
60 PRINT "ANSWER =", SUM
70 NEXT J
80 END
How many times will the statement lines 50 and 60 be repeated?
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(C)
4
23
Which of the following best represents the sequence of output from the program?
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(D)
4, 20, 56, 120
24
Use the BASIC program below to answer this question
10 LET K = 2
20 LET L = 9
30 LET SUM = 0
40 FOR J = K TO STEP 2
50 SUM = SUM + J2
60 PRINT "ANSWER =", SUM
70 NEXT J
80 END
The last output that will be displayed by the program is
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(D)
120
25
Which of the following networks can be extended to cover continents?
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(C)
Wide Area Network
26
Identify the browsers in the following list:
I telnet II netscape navigator.ll opera IV mozilla firefox
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(C)
Il, Ill and IV,only
27
Trap doors and bombs are typical examples of?
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(D)
trojan horses
28
The first four steps required to open e-mail account include:
I click on "Create my account"
II go to home page of the service provider
lll click "create new account"
IV click on "mail"
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(C)
II, IV, Ill and I
29
The two main components of a radio communication system are?
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(C)
transmitter and receiver
30
Which of the following can a traveler who finds himself in a new environment rely on for direction to his final destination?
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(C)
GPS
31
The default number of sheets of a workbook is?
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(C)
three
32
The chart type that does not have the X and Y axis display is the?
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(C)
pie chart
33
When a worksheet is deleted from a workbook, it is?
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(B)
sent to the recycle bin
34
A block of text that is marked by the tab key when the enter key is pressed can be referred to as?
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(B)
paragraph
35
Principal uses of word processing software packages include:
I preparing deft articles for publication
ll pre- paring reports for top management
Ill preparing accounts
IV preparing organizations' newsletter.
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(B)
I, II and IV only
36
In a database, a primary key is a field which contains?
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(B)
unique entries
37
One megabyte is equivalent to?
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(A)
one million bytes
38
Converting 4B7\(_16\) to binary?
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(C)
0100 1000 0111,
39
The speed of data transfer in the computer can be determined in terms of ?
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(C)
bus speed and storage media
40
The initial screen that is displayed after a computer booting is referred to as?
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(A)
desktop
41
Which of the following is not a biometric data?
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(B)
password
42
The main advantage of intellectual property right is?
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(A)
maximization of profit
43
The word bit refers to?
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(A)
the value zero or one
44
The decimal number 1024 in hexadecimal equivalent is?
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(B)
400
45
Which of the following is true of a digital logic gate?
