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ECAT Computer Science Online Test MCQs With Answers
Question # 1
IBM-1401, CDC-6600, IBM-7030 etc. belong to the.
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first generation computers
second generation computers
third generation computers
fourth generation computers
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Question # 2
CD-ROM has the same format as
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backup tape
DAT
diskette
audio compact disk
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Question # 3
97
10
(decimal) in octal number system is equivalent to.
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136
8
140
8
139
8
141
8
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Question # 4
Token passing prevents data collisions by.
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Using code to steer tokens around each other
Having multiple tokens take alternate routes.
Allowing only one computer at a time to use the token
Using zones to control network traffic congestion
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Question # 5
A 64 K-bit word computer has
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64 x 1000 bits
64 x 1012 bits
64 x 1020 bits
64 x 1024 bits
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Question # 6
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 # 7
The most powerful computers are
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Supercomputer
mainframe computers
super minis
super micros
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Question # 8
Graphics and other paperwork can be transmitted directly using which technology?
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CSMA/CD
token passing
facsimile
bulletin board
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Question # 9
Boolean algebra use which of the following to represent arithmetic quantities.
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decimal digits
exponents
binary bits
fractions
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Question # 10
The differential equations are solved by.
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analog computers
digital computers
differential machine
both analog and digital computers
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Question # 11
TIme-sharing of resources by users is usually.
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based on time slices
based on input
event-driven
operated by spooling
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Question # 12
The number of bytes in the following number (1111, 1011, 0111,0100,1010) is.
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5
2 1/2
10
1 2/4
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Question # 13
Printer is an example of
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Softcopy
Hardcopy
Photocopy
Nothing
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Question # 14
Which input device is often attached to laptop computers:
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trackball
inscriber
wand reader
graphic display
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Question # 15
Computer follows a simple rule called GIGO, GIGO stand for
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good input, good output
great instructions, great output
garbage in, garbage out
gated input, gated output
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Question # 16
Analog signal is measured in
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Volts
Pulses
Hertz
WATTS
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Question # 17
People on a LAN can share.
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Printer
CD/ROM disk drive
modem
fax machine
All of the above
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Question # 18
Imaging used what device to input data.?
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scanner
icon
bar code reader
tablet
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Question # 19
Base 8 is often used in computing because.
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there are 8 bit in a byte
calculations become easier by using base 8
electronic circuits can be made econmically
it can represent long strings of binary 1's an 0's in a more compact form
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Question # 20
Video Display Adapters that takes 1024 x 768 pixels are
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VGA
SVGA
XGA
GSA
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Question # 21
The function of an OP code is.
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To instruct the CPU
To translate a mnemonic
Operate the I/O devices
To act as a buffer
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Question # 22
The circuit that is used for parallel to serial conversion is
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decoder
encoder
multiplexer
demultiplexer
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Question # 23
Error reports are an example of
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sheduled report
on-demand reports
exception reports
external reports
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Question # 24
SNA stands for
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Simple Network Adapter
System Network Arhitecture
System Network Application
Small Network Application
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Question # 25
The music and speech represent the:
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Image Data
Audio Data
Video Data
Text Data
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Question # 26
The most powerful computers are
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Supercomputer
mainframe computers
super minis
super micros
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Question # 27
Assigning more sector to outer hard disk is called
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zone recording
randomizing
sectoring
data transfer
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Question # 28
A set of instructions in a computer is:
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Software
Program
Hardware
Both A and B
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Question # 29
Memory capacity may be expressed in.
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microseconds
kilobytes
bits
cycles
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Question # 30
Which input device is often attached to laptop computers.
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trackball
inscriber
graphics display
wand reader
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Question # 31
Software to persue the Internet
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Gateway
Videoconferencing
Browser
Teleconferencing
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