Y7 & Y8 What is Binary?

Binary uses 1’s & 0’s to represent data

• False
• True

A computer uses Binary because...

• Computers like Maths
• Processors are made up of a series of switches

In Binary, 0 means on and 1 means off.

• True
• False

What can computers do with Binary?

• Complete calculations, play games and sound.
• Save digital work to a hard drive
• Make Siri help you.
• All of the these.

What is Denary?

• The standard number system used around the world to represent all numbers
• Binary's Brother

Denary are numbers that humans use in every day life

• True
• False

The number system used by Computers is known as 

• Base 2
• Base 10 
• Base 16
• None of the above

The number system used by human beings in every day life is

• Base 2
• Base 10
• Base 16
• None of the above

Convert 128 to binary

• 10000000
• 01111110
• 10000001
• 11001100

Convert 254 to binary

• 11110000
• 11111100
• 11111111
• 11111110