binary

• what is the maximum denary value that can be represented by 2 hexadecimal digits?

  255


  255
• A group of 1000 bytes.

  Kilobyte
• what is over flow

  when a number is to large to be stored
• has 2 symbols binary

  has 16 symbols hexadecimal

  has 10 symbols denary
• 1 + 0 = 1

  1 + 1 = 0

  0 + 0= 1
• 256 different combinations