Question # 1

Data items are generally classified into which type of codes

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Numeric

Alphanumeric

Character

All of the above

The reason why computers have been designed to use binary numbers is.

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computer circuits have to handle 2 binary digits rather than 10

electronic components, by their very nature, operate in a binary mode

everything that can be done with a base of 10 can also be done in binary

all of the above

126₈+ 425₈= __________

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111101011₂

101101001₂

101101011₂

101100011₂

A letter, number, or a special character is represented by a.

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bit

kilobyte

byte

megabyte

Four-digit binary number 1011 is represented in the decimal system by.

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7

9

11

13

The number ABC in Hexadecimal system is equivalent to which number in decimal system.

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A x 100 + B x 10 + C x 1

10 x 100 + 11 x 10 + 12

10 x 16 + 11 x 16 + 12

10 x 256 + 11 x 16 + 12

The binary number 101000101011 is equal to the hexadecimal number

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A2D

C2D

A2B

B2C

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

The binary number 10011101 is equal to the hexadecimal number.

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9E

9F

9D

FF

Binary number 10101101 is equivalent in decimal form to.

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170

171

173

174

The main advantage of hexadecimal number is the case of conversion from hexadecimal to.

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ASCII code

binary

octal

decimal

Number 375₁₀is equivalent in binary system to.

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101110101

100110101

101110111

101110011

97₁₀(decimal) in octal number system is equivalent to.

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136₈

140₈

139₈

141₈

What is the octal equivalent of the binary system :10111101.?

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675₈

275₈

572₈

573₈

Alphanumeric characters are expressed in terms of binary codes. In ASCII (American standard Code for Information Interchange) each character is represented as a

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8 bit code

4 bit code

5 bit code

7 bit code

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