WorksheetsNumber Systems in Computer Science
Total questions: 27
Worksheet time: 15mins
What is the base of the decimal number system?
Base 2
Base 8
Base 10
Base 16
How many digits are used in the decimal number system?
2 digits
9 digits
10 digits
16 digits
Which of the following is NOT a feature of the decimal number system?
Uses 10 digits
Base 10
Common in daily life
Base 2
What is a number system?
A way to represent numbers
A type of computer program
A mathematical operation
A language for computers
Which number system are you used to using in everyday life?
Binary Number System
Hexadecimal Number System
Decimal Number System
Octal Number System
What is another name for the decimal number system?
Base 2 Numbers
Base 8 Numbers
Base 10 Numbers
Base 16 Numbers
How many digits does the binary number system use?
One
Two
Three
Four
Why is the binary system suitable for computers?
It is easy to understand
It uses fewer digits
Computers use electronic components that understand on and off states
It is the oldest number system
Which of the following is a digit in the Hexadecimal system?
G
H
F
J
Which number system is used frequently in computer systems alongside binary?
Octal
Decimal
Hexadecimal
Ternary
Which of the following is a correct Hexadecimal digit?
10
G
9
H
Why is the binary number system considered computer friendly?
It represents on/off states in electronic components
It uses more digits
It is easier to read
It is faster to calculate
What are the place values in the binary number system?
1's, 2's, 4's, 8's columns
10's, 100's, 1000's columns
5's, 10's, 15's columns
2's, 3's, 5's columns
What is the value of the fourth column in a binary number system?
1
2
4
8
How is the hexadecimal number 3BD represented in decimal form?
1234
957
789
1024
Translate the decimal number 20 to binary
1010
10100
2000
1024
Translate the binary 101011 to decimal
32
43
63
23
Which unit is commonly used in computing?
Bit
Nibble
Byte
Word
The number 22 is 10110. How many bits are needed to store it?
5
6
4
22
You have 24 bits. How many bytes do you have?
3
8
4
12
What is ASCII?
Stands for American Standard Code for Information Interchange
It is used to translate letters to a number. The number is then translated to binary.
It is how simple text is stored in binary.
All of these definitions
What is the primary use of understanding bits, bytes, and nibbles?
Text formatting
Image editing
Computer memory representation
Sound processing
What is the decimal value of the binary number 100?
4
1
2
3
A single digit in the binary system is called a (a) .
A collection of 4 bits is called a (b) .
8 bits is called a (c) .
What is the binary representation of the decimal number 15?
1001
1100
1010
1111
How many bits are in a nibble?
4
16
8
2
Convert the hexadecimal number A3 to binary.
11100011
10101011
11010011
10100011
