FORUM DESCRIPTION Two's Complement Problems with sign-magnitude and 1's complement two representations of zero (+0 and-0) . arithmetic circuits are complex How to add two sign-magnitude numbers? -e.g., try 2+ (-3) -e.g., try 4+ (-3) circuits easy for arithmetic. How to add two one's complement numbers? Two's complement representation developed to make . for each positive number (X), assign value to its negative (-X), such that X + (-X) 0 with "normal" addition, ignoring carry out 00101 (5) 01001 (9) + 11011 (-5) + 00000 (0) 00000 (0) Many early computers use one's complement notation: however, since 60's, modern computers have adopted two's complement notation Please explain why