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ECAT Computer Science Online Test MCQs With Answers
Question # 1
Who is regarded as the Father of computers.
Choose an answer
John Napier
Pascal
Charles Babbage
Hollerith
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Question # 2
An example of peripheral equipment
Choose an answer
CPU
spreadsheet
printer
microcomputer
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Question # 3
The information that is to be transferred from one location to another is called:
Choose an answer
Signals
Data
Sender
Message
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Question # 4
The FORTRAN equivalent of the mathematical expression ab/cd is.
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A * B / C * D
A.B / C.D
A * B / (C*D)
A*B/B*D
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Question # 5
Which of the following is not a component of telecommunications?
Choose an answer
sender
office device
medium
receiver
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Question # 6
What is the octal equivalent of the binary system :10111101.?
Choose an answer
675
8
275
8
572
8
573
8
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Question # 7
How many input leads will be required for a chip containing four two-input Not gates?
Choose an answer
7
14
12
13
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Question # 8
Who is responsible for introducing the concept of stored program.
Choose an answer
Blaise Pascal
Herman Hollerith
Charles Babbage
John von Neumann
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Question # 9
Memory capacity may be expressed in.
Choose an answer
microseconds
kilobytes
bits
cycles
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Question # 10
The accuracy of analog computers as compared to digital computer is.
Choose an answer
more
less
nearly same
unpredictable
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Question # 11
Communication circuits that transmit data in both directions but not at the same time are operating in.
Choose an answer
Simplex mode
Half duplex mode
Full Duplex mode
None of above
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Question # 12
According to Boolean algebra x + 1 = ______________
Choose an answer
0
1
x
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Question # 13
The digits used for hexadecimal number system are.
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A through Z
1 through 16
0 through 15
0 through 9 and A through F
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Question # 14
Most mainframe computers are basically.
Choose an answer
4 bit machines
8 bit machines
32 bit machines
16 bit machines
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Question # 15
Computer output produced as small film images is called
Choose an answer
OCR
COM
LCD
OMR
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Question # 16
A one color screen on a black background is called
Choose an answer
monochrome
addressable
blank
lcd
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Question # 17
Which one of the following is a graphical shell?
Choose an answer
UNIX
page
utility program
GUI
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Question # 18
Which input device is often attached to laptop computers.
Choose an answer
trackball
inscriber
graphics display
wand reader
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Question # 19
The transfer of data from one place to another is called
Choose an answer
Data processing
Data distribution
Data communication
Data encryption
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Question # 20
The most powerful computers are
Choose an answer
Supercomputer
mainframe computers
super minis
super micros
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Question # 21
Historically, the first computers were used for.
Choose an answer
text processing
data storage
simulation and modeling
arithmetic calculations
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Question # 22
The kind of interview where all questions are planned in advance is called
Choose an answer
preplanned
structured
observation
unstructutred
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Question # 23
According to Idempotent law , x + y = __________
Choose an answer
1
0
x
x . x
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Question # 24
Octal number system uses the digit 0 to 7. The equivalent of Octal 126 in decimal system is.
Choose an answer
80
82
86
84
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Question # 25
The ___________ is the physical path over which a message travels.
Choose an answer
Single
Double
Protocol
Medium
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Question # 26
The equipment attached to CPU which computer can access are called.
Choose an answer
hardware
input/output devices
peripherals
computer components
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Question # 27
Soft copy refers to.
Choose an answer
OCR-A
screen output
microfiche
digitizing
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Question # 28
Pick out the wrong statement about computers.
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it is a logical machine
it can access any piece of information that it has in store
it is devoid of emotion, has no feelings or instincts
it approaches its information is unrestricted manner
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Question # 29
97
10
(decimal) in octal number system is equivalent to.
Choose an answer
136
8
140
8
139
8
141
8
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Question # 30
Personal computer user may wish to increase their hard disk storage capacity with
Choose an answer
higher density
DAT
read only media
removable hard disk cartridge.
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Question # 31
A systems analyst would observe the flow of data and interrelations of people within an organization during.
Choose an answer
detail design
preliminary design
systems analysis
a system survey
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