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Worksheets

Number Systems

Total questions: 126

Worksheet time: 1hrs 3mins

Name
Class
Date
1.

What number system is also known as the base 10 system?

a)

Octal Number System

b)

Decimal Number System

c)

Hexadecimal Number System

d)

Binary Number System

2.

What is the base of the Octal Number System?

a)

2

b)

8

c)

10

d)

16

3.

What number system do electronic systems commonly use?

a)

Decimal Number System

b)

Octal Number System

c)

Hexadecimal Number System

d)

Binary Number System

4.

What does the acronym of Bits stand for?

a)

BinarydibiTs

b)

BinarialdigiTs

c)

It is not an acronym.

d)

BInarydigiTs

5.

What is the most commonly used number system in the world?

a)

Decimal Number System

b)

Octal Number System

c)

Hexadecimal Number System

d)

Binary Number System

6.

How many bits does BCD use per character?

a)

4 bits

b)

6 bits

c)

8 bits

d)

16 bits

7.

How many bits does the original ASCII use?

a)

7 bits

b)

8 bits

c)

16 bits

d)

32 bits

8.

EBCDIC stands for Extended BCD ___________ ____

(a)  

9.

What company used EBCDIC?

a)

IMB

b)

IBM

c)

Apple

d)

Microsoft

10.

The binary number system uses ___ numbers.

a)

three

b)

two

c)

one

d)

ten

11.

What number system is used by almost every civilization throughout history?

a)

Decimal

b)

Hexadecimal

c)

Octal

d)

Binary

12.

What numbers are used in the binary number system?

a)

0-10

b)

0-15

c)

0-1

d)

0-7

13.

What is the word 'bit' short for?

a)

Basic Intergers

b)

Binary digit

c)

Binary Tech

14.

When combining bits bytes are created.

a)

True

b)

False

15.

High resolution video is made up of very few bits.

a)

True

b)

False

16.

We can think of binary like a _______.

a)

push button

b)

volume knob

c)

light switch

17.

What number system do we use to count in the real world?

a)

Hexadecimal

b)

Decimal

c)

Binary

d)

Octal

18.

video, text, pictures, and more can be broken

down into ______and even though we

can't see them it's all a bunch of ______ and _______

a)

decimal, ones and tens

b)

hexadecimal, zeroes and nines

c)

binary, ones and zeroes

d)

octal, zeroes and sevens

19.

01010111 01000101

01000001 01010010 01000101

01000100 01001111 01001110 01000101

!

a)

We

are

finished!

b)

We

are

completed!

c)

We

are

done!

d)

We

are

good!

20.

Convert this decimal number into a Binary number: 1

(a)  

21.

Convert this decimal number into a Binary number: 7

(a)  

22.

Convert this decimal number into a Binary number: 10

(a)  

23.

Convert this decimal number into a Binary number: 20

(a)  

24.

Convert this decimal number into a Binary number: 33

(a)  

25.

Convert this decimal number into a Binary number: 55

(a)  

26.

Convert this decimal number into a Binary number: 76

(a)  

27.

Convert this decimal number into a Binary number: 101

(a)  

28.

Convert this decimal number into a Binary number: 164

(a)  

29.

Convert this decimal number into a Binary number: 237

(a)  

30.

Convert this Binary number into a Decimal number: 0011

(a)  

31.

Convert this Binary number into a Decimal number: 1001

(a)  

32.

Convert this Binary number into a Decimal number: 0001 0001

(a)  

33.

Convert this Binary number into a Decimal number: 0010 1000

(a)  

34.

Convert this Binary number into a Decimal number: 0011 1101

(a)  

35.

Convert this Binary number into a Decimal number: 0110 0011

(a)  

36.

Convert this Binary number into a Decimal number: 1001 0100

(a)  

37.

Convert this Binary number into a Decimal number: 1010 1111

(a)  

38.

Convert this Binary number into a Decimal number: 1101 1110

(a)  

39.

Convert this Binary number into a Decimal number: 1111 1111

(a)  

40.

What is 1 in binary (shortest way of writing please)?

(a)  

41.

What is 2 in binary (shortest way of writing please)?

(a)  

42.

What is 3 in binary (shortest way of writing please)?

(a)  

43.

What is 4 in binary (shortest way of writing please)?

(a)  

44.

What is 5 in binary (shortest way of writing please)?

(a)  

45.

What is 7 in binary (shortest way of writing please)?

(a)  

46.

What is 8 in binary (shortest way of writing please)?

(a)  

47.

What is 11 in binary (shortest way of writing please)?

(a)  

48.

What is 14 in binary (shortest way of writing please)?

(a)  

49.

What is 18 in binary (shortest way of writing please)?

(a)  

50.

What is 33 in binary (shortest way of writing please)?

(a)  

51.

What is 127 in binary (shortest way of writing please)?

(a)  

52.

What is 251 in binary (shortest way of writing please)?

(a)  

53.

What is 255 in binary (shortest way of writing please)?

(a)  

54.

What is 0 in binary (shortest way of writing please)?

(a)  

55.

1's compliment of 10111

a)

00110

b)

11000

c)

01000

d)

All

56.

2's compliment of 1011000

a)

0101000

b)

1111101

c)

0111000

d)

All

57.

101 + 11

a)

1000

b)

1101

c)

1111

d)

All

58.

Subtraction 101-11 in binary

a)

10

b)

01

c)

11

d)

All

59.

9 in binary number

a)

1001

b)

1100

c)

1011

d)

All

60.

1101 in decimal

a)

13

b)

12

c)

11

d)

All

61.

33 in binary

a)

100001

b)

111110

c)

101010

d)

All

62.

Who introduce booth algorithm

a)
b)
c)
d)
63.

CPU is called ___of computer

a)

BRAIN

b)

MIND

c)

BODY

d)

ALL

64.

ALU is part of RAM

a)

True

b)

FALSE

65.

Which is the correct denary number for 1011

a)

10

b)

5

c)

8

d)

11

66.

What is the correct denary number for 00100101

a)

36

b)

37

c)

48

d)

27

67.

Convert the following binary to a denary number: 00010110

(a)  

68.

Convert the following binary to a denary number: 10010101

(a)  

69.

Which is the correct binary number to represent 46?

a)

00101110

b)

00011111

c)

01000100

d)

00110000

70.

Which is the correct binary code to represent the denary number 186?

a)

10010100

b)

01111100

c)

10111010

d)

11000010

71.

Convert the following denary number to binary (8 bits): 28

(a)  

72.

Convert the following denary number to binary (8 bits): 254

(a)  

73.

Convert the Decimal 45 to Octal

(a)  

74.

Convert the Decimal 168 to Octal

(a)  

75.

Convert the Decimal 120 to Octal

(a)  

76.

Convert the Decimal 261 to Octal

(a)  

77.

Convert the Decimal 210 to Octal

(a)  

78.

Convert the Octal 207 to Decimal

(a)  

79.

Convert the Octal 440 to Decimal

(a)  

80.

Convert the Octal 643 to Decimal

(a)  

81.

Convert the Octal 51 to Decimal

(a)  

82.

Convert the Octal 340 to Decimal

(a)  

83.

Convert the Octal 207 to Binary

(a)  

84.

Convert the Octal 440 to Binary

(a)  

85.

Convert the Octal 643 to Binary

(a)  

86.

Convert the Octal 51 to Binary

(a)  

87.

Convert the Octal 340 to Binary

(a)  

88.

Convert the Octal 4140 to Decimal

(a)  

89.

Convert the Octal 4140 to Binary

(a)  

90.

Convert the Octal 2443 to Binary

(a)  

91.

Convert the Octal 2443 to Decimal

(a)  

92.

Convert the Octal 115 to Binary

(a)  

93.

Convert the Octal 1202 to Binary

(a)  

94.

Convert the Octal 1056 to Binary

(a)  

95.

Convert the Octal 13460 to Binary

(a)  

96.

Convert the Octal 22413 to Binary

(a)  

97.

Convert the Decimal 833 to Octal

(a)  

98.

Convert the Decimal 461 to Octal

(a)  

99.

Convert the Decimal 511 to Octal

(a)  

100.

Convert the Decimal 3089 to Octal

(a)  

101.

Convert the Decimal 9707 to Octal

(a)  

102.

Convert the Octal 1606 to Decimal

(a)  

103.

Convert the Octal 1113 to Decimal

(a)  

104.

Convert the Octal 1401 to Decimal

(a)  

105.

Convert the Octal 3746 to Decimal

(a)  

106.

Convert the Octal 21770 to Decimal

(a)  

107.

What is 12 in binary?

a)

1010

b)

1100

c)

1110

d)

0111

108.

What is 25 in binary?

a)

10101

b)

11011

c)

10011

d)

11001

109.

What is 1101101 in decimal?

a)

109

b)

95

c)

104

d)

113

110.

What is 100010 in decimal?

a)

43

b)

34

c)

33

d)

29

111.

What is 10 in hexadecimal?

a)

10

b)

1010

c)

A

d)

1100

112.

What is 15 in hexadecimal?

a)

E

b)

F

c)

G

d)

10

113.

what is 1A in decimal?

a)

22

b)

24

c)

25

d)

26

114.

What is D in decimal?

a)

11

b)

19

c)

12

d)

13

115.

What is 8 in octal?

a)

10

b)

8

c)

1000

d)

A

116.

What is 1010 in hexadecimal?

a)

C

b)

A

c)

10

d)

B

117.

What is 11011 in hexadecimal?

a)

A

b)

1A

c)

1B

d)

2A

118.

What is C in binary?

a)

1100

b)

1110

c)

1000

d)

1010

119.

What is 12 octal in binary?

a)

1111

b)

1010

c)

1110

d)

1000

120.

True or False: CPU stands for Central Processing Unit?

a)

True

b)

False

121.

True or False: Everything in the computer is wired to the CPU

a)

True

b)

False

122.

True or False: RAM stands for Random Access Memory

a)

True

b)

False

123.

True or False: The RAM stores long term memory

a)

True

b)

False

124.

True or False: The Power Supply Unit supplies the power to the computer

a)

True

b)

False

125.

True or False: The Hard Drive stores long term storage

a)

True

b)

False

126.

True or False: There are THREE types of optical drives

a)

True

b)

False

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