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ECAT Computer Science Online Test MCQs With Answers
Question # 1
A string of binary digits treated as a unit is called a.
Choose an answer
bit
byte
word
character
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Question # 2
A standardized business language is
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CODASYL
BASIC
COBOL
Ada
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Question # 3
A hybrid computer is the one having combined properties of
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super and microcomputers
mini and microcomputers
analog and digital computers
none of the above
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Question # 4
A letter, number, or a special character is represented by a.
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bit
kilobyte
byte
megabyte
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Question # 5
Following devices are used in simplex mode
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Radio
Television
a , b
Multiplexers
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Question # 6
For calculating taxes, input to a computer could be.
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numbers representing wages
income
tax tables
all of the above
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Question # 7
_______ pointing devices has a vertical handle like a gearshift lever:
Choose an answer
Light pen
Pointing stick
Trackball
Joystick
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Question # 8
Which input device is often attached to laptop computers.
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trackball
inscriber
graphics display
wand reader
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Question # 9
The information that is to be transferred from one location to another is called:
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Signals
Data
Sender
Message
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Question # 10
The number of bytes in the following number (1111, 1011, 0111,0100,1010) is.
Choose an answer
5
2 1/2
10
1 2/4
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Question # 11
___________coding scheme is used by IBM
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Unicode
ASCII
EBCDIC
BCD
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Question # 12
Program maintenance means
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Maintaining a program exactly the way it was initially developed
Changing a program due to changes in the organization
Removing the errors from a program
Changing a program due to changes in the organization
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Question # 13
A bar code reader is an example of a(n).
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processing device
storage device
Input device
output device
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Question # 14
Assigning more sector to outer hard disk is called
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zone recording
randomizing
sectoring
data transfer
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Question # 15
Which one is not network topology?
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Star
Ring
Circle
Bus
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Question # 16
Programs written to cause computers to function in a desired way are called.
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hardware
instruction
software
algorithm
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Question # 17
The accuracy of analog computers as compared to digital computer is.
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more
less
nearly same
unpredictable
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Question # 18
The first computer to use electrical power was developed by.
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Herman Hollerith
Thomes J. Watson
John V. Atanasoff
Howard Aiken
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Question # 19
Who developed the first automatic electronic digital computer prototype between 1935 and 1942.
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John Atanasoff
J. Presper Eckert
William Shockley
Thomas J.Watson
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Question # 20
IBM stands for
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International Business Machine
International Binary Machine
Internal Business Machine
International Business Microsoft
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Question # 21
In computer science, by information we mean
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Any output coming out form
Processed data put in intelligent form
A report printed by computer
Plural of data
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Question # 22
The term "time slicing" need not apply to.
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On line transacting processing
Batch processing
Real time processing
None of the above
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Question # 23
How many types of data transmission modes are there?
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2
3
4
5
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Question # 24
Excess-3 code is known as
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Weighted code
cyclic redundancy code
algebraic code
self complementing
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Question # 25
DASD refers to.
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disk storage
track
tape storage
sorting
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Question # 26
Arrow keys are also known as :
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Function keys
Cursor control keys
Toggle keys
Special keys
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Question # 27
When all hardware, software, storage, and processing is housed in one location it is called.
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a time-sharing system
centralized processing
a DDP system
a host computer system
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Question # 28
The speed at which a disk can find data being bought is called
Choose an answer
access time
data transfer rate
direct time
cylinder time
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Question # 29
In the course of a systems project, systems design
Choose an answer
follows systems analysis
follows development
precedes systems analysis
is the fourth phase
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Question # 30
A microprocessor has memory location from 0000 to 3FFF, each storing one byte. The number of bytes, the memory can stored is.
Choose an answer
8,192
16,384
32,768
4,096
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Question # 31
The mechanism for reading or writing data in a disk is called
Choose an answer
track
rorational delay
access arm
seek time
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