Consider the following 12bit numbers below. Assuming they are unsigned, add them to produce a 12bit sum the same way a computer would. Also, state whether or not an error results using the same method a computer would.
110010001001
011010001101
110010001001
011010001101

Carry in each bit 
1 
1 
1 
1 
1 

addend1 
1 
1 
0 
0 
1 
0 
0 
0 
1 
0 
0 
1 

addend2 
0 
1 
1 
0 
1 
0 
0 
0 
1 
1 
0 
1 

sum 
1 
0 
0 
1 
1 
0 
0 
0 
1 
0 
1 
1 
0 
Since there is carry from most significant bits, it results in overflow. The sum having 13 bits, cannot be represented with 12 bits as that of addends. So results in overflow error.
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