Binary, Denary & Hex

Which of these are binary digits?

• 0

• 1

• 2

• 3

Which of these are hexadecimal digits?

• F

• G

• 6

• 0

• H

How many different values can be represented using 8 bits?

• 128

• 255

• 256

• 999

What is the binary equivalent of the hexadecimal digit E?

• 1110

• 1111

• 0110

• 0111

Hexadecimal is used because...

• It takes up less space

• It is easier for computers to process

• It is easier for people to read

• It is quicker to write data in

How many bits make a byte?

• 2

• 4

• 8

• 16

Convert 128 to binary

• 10000000
• 01111110
• 10000001
• 11001100

Convert the binary number 11000011 to Hex

• 11

• A2

• C3

• D4

Which number system are these examples of?
2A    7F    1C

• Binary
• Denary
• Hexadecimal

Convert the hex number into binary:

3f

• 1100 1111

• 1010 1111

• 1110 1111

• 0011 1111