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Online Tests
9th Class Computer Chapter 2 Fundamentals of Operating Systems English Medium KPK Boards Online Mcqs MCQs With Answers
Question # 1
Which number system has base 2 ?
Choose an answer
Decimal
Hexa decimal
Binary
Octal
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Question # 2
Which number system consists of 0s and 1s ?
Choose an answer
Decimal
Hexa
Binary
Octal
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Question # 3
Expression (A + B ) . ( A + C ) is equal to:
Choose an answer
A + (B . C)
A . B + A . C
A . (B . C)
A + ( B + C)
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Question # 4
All the characters on your keyboard has an associated code in binary. This code is called:
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BCD
Unicode
ASCII
EBCDIC
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Question # 5
Number "17" is equal to ______ in binary system:
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10000
10110
10001
10100
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Question # 6
According to _____ law there is no change in results if priority of expressions is changed:
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Associatative
Commutative
Duality
Complement
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Question # 7
Data to a processor is provided through:
Choose an answer
ROM
RAM
EPROM
EEPROM
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Question # 8
The number system we use in our daily life is the:
Choose an answer
Decimal number system
Binary number system
Octal number system
Numeric
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Question # 9
The binary value of the letter "A" is 01000001 and its decimal value is:
Choose an answer
67
66
69
65
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Question # 10
Digital computers store data in ________ form:
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Numeric
Decimal
Octal
Binary
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Question # 11
Which is an example of primary memory ?
Choose an answer
Floppy disk
CD - ROM
Hard disk
RAM
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Question # 12
Hard drives, flash drives and memory cards are example of memory:
Choose an answer
Non-volatile
Volatile
Hard disk
Floppy disk
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Question # 13
In Boolean algebra plus sign is used for _________ operation:
Choose an answer
OR
AND
NAND
NOT
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Question # 14
Which language is understood by the computer ?
Choose an answer
Binary
Hill
High level
Middle level
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Question # 15
Temporary memory is _________ and permanent memory is _______:
Choose an answer
Volatile, Non - volatile
Slow, Fast
Low, High
All of these
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