1. Binary Numbers

• Denary is base 10
• Binary is base two
• What digits can be used to make denary numbers?

  0, 1, 2, 3, 4, 5, 6, 7, 8, 9
• What digits can be used to make binary numbers?

  0 and 1
• What is a bit?


  A single binary digit
• What is a byte?

  A group of eight bits
• What is a nibble?

  A group of four bits
• What are the binary place values of a byte?

  128, 64, 32, 16, 8, 4, 2, 1
• Convert the binary number 1011 0100 to denary?

  180
• Convert the binary number 101110 to denary?

  46
• Convert the denary number 81 to binary?

  0101 0001
• Convert the denary number 214 to binary?

  1101 0110