Year 8 Binary End of Unit

What two values do computers save information as?

• 1 or 2

• 1 or 0

• 10 or 20

• 20 or 30

In binary, a digit (1 or 0) is called a

• Kilobyte

• Byte

• Bit

• Megabyte

What is the largest number that can be stored in 3 bits (111)?

• 1

• 4

• 2

• 7

How many bits are there in a byte?

• 8

• 4

• 3

• 2

What is 5 in binary?

• 0101

• 1011

• 1111

• 0011

What is 15 in binary?

• 0000

• 0001

• 1111

• 1110

What is 0001 in denary?

• 1000

• 100

• 10

• 1

What is 0011 in denary?

• 5

• 3

• 11

• 7

What is Ascii?

• Ascii is a word

• Ascii are letters

• Ascii code is where a number represents a character.

• Ascii is a where letters represent numbers. 

How do computers save letters?

• Computes use Ascii  to  change the lettters to numbers and then save as binary

• Computers make up their own code and save the letters.

• Computes ask the user for help

• Computers phone a friend