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ECAT Computer Science Online Test MCQs With Answers
Question # 1
The 'Boolean Algebra' is based on the premise that
Choose an answer
there are two states
differential equations can be solved by analog circuits.
either a statement is true or false
arithmetic operations can be carried out
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Question # 2
The presence of both data and its related instructions in an object is
Choose an answer
C++
encapsulation
orientation
inheritance
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Question # 3
A CPU has.
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control unity consisting of program counter and instruction decoder, and arithmetic unit having accumulator
bubble memory
visual display unit
auxiliary storage unit
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Question # 4
The major disadvantage of magnetic tape is
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cost
unreliability of store data
slow data recording
data is accessed sequentially
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Question # 5
Computer is a combination of:
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Software
Hardware
Both A and B
None
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Question # 6
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 # 7
A typical microcomputer has 64 K memory. It has 65,536 registers,each register storing 1 byte Each register is called
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memory location
address
byte
word
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Question # 8
A device that connects multiple nodes to the network is.
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A modem
A repeater
A router
A hub
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Question # 9
Which of the following is a Correct definition of volatile memory?..
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It is the latest type of bubble memory
It loses its contents at high ambient temperatures
Its contents are lost on failure of power supply
It has to be kept in air tight boxes always
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Question # 10
The final value of K after following FORTRAN program segment is executed will be
J=2
Do 50 I=3,8,J
J=J+1
50 Continue
J=5 * J
Choose an answer
2
7
40
The program can not be executed
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Question # 11
The device used with satellite transmission that ensures that strong outgoing signals do not interface with weak incoming signals is called a.
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microwave
transponder
cable
modem
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Question # 12
Which input device is often attached to laptop computers:
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trackball
inscriber
wand reader
graphic display
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Question # 13
A device used for optical-character recognition is a.
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wand reader
light pen
mouse
MICR reader
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Question # 14
A computer is capable of performing almost any task, provided that it can be.
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coded
memorized
analyzed
reduced to a series of logical steps
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Question # 15
The basic operation performed by the computer is called
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arithmetic operation
logic operation
storage and retrieval operation
all of above
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Question # 16
The signal that the computer is awaiting a command from the user
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prompt
time slice
event
interrupt
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Question # 17
Which of the following variable name is legal?
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PAK 123
A * B
COMPUTER
A/B
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Question # 18
The first digital computer to work electrically was the.
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UNIVAC
Atanasoff-Berry Computer
Mark I
analytical machine
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Question # 19
Electronic Numerical Integrator and Calculator (ENIAC machine) belongs to the
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first generation digital computer
second generation computer
third generation computer
fourth generation computer
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Question # 20
A connection of same type of network is
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Bridge
Repeater
Gateway
Router
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Question # 21
A device that inputs data by scanning letters and number is a
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keyboard
wand reader
mouse
diskette
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Question # 22
Charles Babbage set out to create a device that could carry out any calculation to twenty digits of accuracy called a(n):.
Choose an answer
computer
analytical engine
calculator
mainframe
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Question # 23
Computer follows a simple principle called GIGO which meas
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Garbage input good output
garbage in garbage out
great instruction great output
good input good output
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Question # 24
Information travels between components of a computer through groups of wires called.
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cards
busses
slots
ports
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Question # 25
The Mark I was built by.
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Thomas Watson
Dr. John Mauchly
Howard Aiken
Howard Aiken
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Question # 26
A microprocessor has memory location from 0000 to 3FFF, each storing one byte. The number of bytes, the memory can stored is.
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8,192
16,384
32,768
4,096
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Question # 27
Assuming 8 bit for data, 1 bit for parity, 1 start bit and 2 stop bits, the number of characters that 1200 BPS communication line can transmit.
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10 CPS
120 CPS
12 CPS
none of these
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Question # 28
A bootstrap is.
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the flat cable that connects the CPU to the printer
the flat cable from the disk controller card to the disk drive
additional memory device
a small initialization program to start up the computer
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Question # 29
Which of the following is termed ad minimum error code?
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Binary code
Gary code
Excess 3-code
Octal code
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Question # 30
The cursor can be moved rolling this device on a flat surface.
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mouse
wand reader
trackball
interactive tablet
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Question # 31
Assigning more sectors to outer disk tracks is called.
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zone recording
randomizing
data transfer
sectoring
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