MSB

The Most Significant Bit (MSB) is the leftmost bit in a binary number that represents the sign of the number. In a signed integer, the MSB is 1 for negative numbers and 0 for positive numbers.

For example, in an 8-bit signed integer:

• Decimal 5 → 00000101 (MSB is 0)
• Decimal -5 → 11111011 (MSB is 1, two complement’s form)