# 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

- These integers can be represented with the sign and magnitude system