8.3 Essential Knowledge Assessment

What is binary?

• The language that computers understand

• A collection of 1s and 0s that make up data in a computer

• A base 2 number system that uses 1 and 0

• A piece of data inside a computer

What is denary?

• The numbers that all humans use and understand

• A base 10 number system that uses the digits 0 to 9

• A number system where values increase by 10 at a time

• A number system with infinite numbers that humans use

A bit is the smallest unit of data. What does the term 'bit' stand for?

• Binary information tick

• Binary number

• Binary digit

• Basic information track

A byte is a collection of ​ (a)   ​ (b)   ​ (c)  

• 8
• binary
• digits
• 2
• numbers
• denary
• 10

Write out your binary number line:

__ __ __ __ __ __ __ __

What is the following binary number equivalent to in denary?

1010 1010

Hint: 128 64 32 16 8 4 2 1

• 150

• 170

• 200

• 160

Convert the following binary number into denary:

0001 0111

Remember your number line:

128 64 32 16 8 4 2 1

Mathematical Equivalence

OFF

Convert the following binary number into denary:

0110 0100

Remember your number line:

128 64 32 16 8 4 2 1

Mathematical Equivalence

OFF

Which of these binary numbers is equal to the following denary number:

81

Hint: 128 64 32 16 8 4 2 1

• 0101 0001

• 0110 0000

• 1000 1001

• 0001 1101

Convert the following denary number into binary:

70

Remember your number line:

128 64 32 16 8 4 2 1

• 0100 1000

• 0101 0000

• 0100 0110

• 0100 0011