Sign and magnitude

• Signed integers are integers that are negative
• Unsigned integers are integers that are positive
  • These integers can be represented with the sign and magnitude system
    • This uses a 0 or a 1 as the first digit to represent a positive or negative number
    • A positive one is represented with a 0
    • A negative one is represented with a 1
    • However, this system can have problems, so Two's complement is usually used