data representation

Subdecks (1)

Cards (16)

  • binary addition rules (work right to left)
  • what is an overflow error
    When the result of an addition is too large for the number of bits the computer works with
  • what do left shifts do
    multiply
  • what do right shifts do
    divide
  • convert 8 into binary
    00001000
  • hexadecimal is a number system which uses base 16
  • a denary number is the standard system used across the world
  • it only has 10 digits so it uses 0-9 then A-F
  • binary is a number system that uses base 2
  • base 2 means there are only two numbers, 0 or 1
  • how to convert from binary to hex
  • why do we use hex
    Much simpler to remember a hex value than a binary value
    Quicker to write or type
    Less likely to make an error with fewer characters
    Easy to convert to and from binary
  • why does a computer use binary
    binary has two states 0 and 1, it can therefore represent the on and off electrical signals.