Computer uses special mechanism to store negative numbers which is 2’s complement format.
Before going to that, let’s have a look on 1’s complement of a number.
1’s complement of a number
1’s compliment of number is just inverting binary bits of an actual number.
2’s complement of a number
To get 2’s complement of a number, just add 1 to 1’s complement of an actual number.
This 2’s complement form will be stored in computer.
Both one’s complement and two’s complement can not change the sign bit (MSB)
When we declare a negative integer variable,
int i; i=-10;
The memory will assign above memory for -10 ( 16 bit system )
