Question # 1

According to _____ law there is no change in results if priority of expressions is changed:

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Associatative

Commutative

Duality

Complement

Which number system has base 10 ?

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Binary

Decimal

Hexadecimal

Octal

Which is an example of primary memory ?

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Floppy disk

CD - ROM

Hard disk

RAM

Which table is used to show whether the statement is true or false ?

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Value table

Boolean table

Truth table

Central table

Digital computers store data in ________ form:

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Numeric

Decimal

Octal

Binary

As soon as the power supply is disconnected, all the data in _________ is cleared:

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RAM

ROM

Hard disk

Floppy disk

Expression (A + B ) . ( A + C ) is equal to:

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A + (B . C)

A . B + A . C

A . (B . C)

A + ( B + C)

In primary and secondary storages, data is stored in the form of:

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Bytes

Bit

Nibble

GB

All the characters on your keyboard has an associated code in binary. This code is called:

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BCD

Unicode

ASCII

EBCDIC

Which is used to assemble more than one propositions into one proposition ?

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Literal

Simple proposition

Proposition

Compound proposition

The binary value of the letter "A" is 01000001 and its decimal value is:

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67

66

69

65

The number system we use in our daily life is the:

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Decimal number system

Binary number system

Octal number system

Numeric

In Boolean algebra 'AND' Operation is denoted by:

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.

*

+

/

Which is an example of volatile memory ?

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RAM

ROM

Hard disk

Floppy disk

(1,024) TB or (1,024)⁵ bytes is equal to:

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1 GB

1 TB

1 KB

1 PB

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Computer Science 9th Class English Medium Chapter 2 Online Test MCQs With Answers

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