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Online Tests
PPSC Computer Science Chapter 1 Basic Computer Knowledge Online Test MCQs With Answers
Question # 1
Who invented the high level language c.
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Dennis M Ritchie
Niklaus Writh
Seymour papert
Donald Kunth
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Question # 2
In 1830 Charies Babbages designed a machine called the analytical engine which he showed at the parts exhibition in which year was it exhibited.
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1820
1860
1855
1970
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Question # 3
Which of the following does not affect the resolution of a video display image.
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Bandwidth
Raster scan rage
Vertical and horizontal lines of resolution
Screen size
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Question # 4
Computer operator
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Writes computer program for specific problems
Operate the device which input and output data from the computer.
Normally require a college degree in computer science
All of the above
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Question # 5
Which of the following is required when more than one person uses a central computer at the same time.
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Terminal
Light pen
Digitizers
Mouse
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Question # 6
A group of magnetic lapse, videos or terminal usually under the control of one master is.
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Cylinder
Surface
Track
Cluster
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Question # 7
Which of the following will happen when data is entered into a memory location.
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It will add to the content of the location
It will change the address of the memory location
It will erase the previous content
It will not be fruitful if there is already some data at the location.
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Question # 8
A data communication facility on which data can be transmitted in two direction is referred as.
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Duplex
Simplex
Triplex
None
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Question # 9
IBM7000 digital computer
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Belongs to second generation
Uses VLSI
Employs semi conductor memory
Has modular constructions
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Question # 10
Which of the following is associated with error detector.
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Odd parity bit
Even parity bit
Both of the above
None of above
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Question # 11
Which of the following file organization is most efficient for a file wiht a high degree of the activity.
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Seuential
ISAM
VSAM
B-tree index
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Question # 12
The word length of a computer is measured in.
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Bytes
Bits
Millimeters
Meters
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Question # 13
As compared to the secondary memory the primary memory of a computer is
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Large
Cheap
Fast
Slow
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Question # 14
Dot-matrix is a type of
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Tape
Printer
Disk
Bus
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Question # 15
The computer code for the interchange of information between terminals is.
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ASCII
BCD
EBCDIC
All of above
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Question # 16
What are the three decisions making operations performed by the ALU of the computer.
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Grater then
Less than
Eual to
All of the above
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Question # 17
Which of the following file organization is most efficient for a file with a high degree of file activity.
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Seuential
ISAM
VSAM
B-Tree index
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Question # 18
The least significant bit of the binary number which is equivalent to any odd decimal number is.
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0
1
1 or 0
3
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Question # 19
Hard disk is coated in both side above
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Magnetic metallic oxide
Optical metallic oxide
Carbon layer
All of the above
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Question # 20
Which of the following is ture.
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Fields are composed of bytes
Records are composed of fields
Fields are composed of characters
All of above
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Question # 21
A modern electronic computer is a machine that is meant for
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Doing uick mathematical calculations
Input storage manipulation and outputting of data
Electronic data processing
Performing repetitive tasks accurately
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